Devices For Air Raid Warnings
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Devices For Air Raid Warnings
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Author : United States. Bureau of Standards
language : en
Publisher:
Release Date : 1942
Devices For Air Raid Warnings written by United States. Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1942 with National Bureau of Standards categories.
Devices For Air Raid Warning
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Author :
language : en
Publisher:
Release Date : 1942
Devices For Air Raid Warning written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1942 with Air raid warning systems categories.
Letter Circular 685
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Author : National Bureau of Standards
language : en
Publisher:
Release Date : 1942
Letter Circular 685 written by National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1942 with National Bureau of Standards categories.
Air Raid Warning Devices Jan May 1942
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Author :
language : en
Publisher:
Release Date : 1942
Air Raid Warning Devices Jan May 1942 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1942 with Air raid warning systems categories.
The Effectiveness Of Sonic Outdoor Warning Devices
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Author : Stanford Research Institute
language : en
Publisher:
Release Date : 1953
The Effectiveness Of Sonic Outdoor Warning Devices written by Stanford Research Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with Air raid warning systems categories.
Outdoor Sound Systems For Public Air Raid Warning
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Author : United States. Office of Civilian Defense
language : en
Publisher:
Release Date : 1942
Outdoor Sound Systems For Public Air Raid Warning written by United States. Office of Civilian Defense and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1942 with Air raid warning systems categories.
Letter Circular 706
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Author : National Bureau of Standards
language : en
Publisher:
Release Date : 1942
Letter Circular 706 written by National Bureau of Standards and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1942 with National Bureau of Standards categories.
Air Raid Warning System
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Author : United States. War Department
language : en
Publisher:
Release Date : 1941
Air Raid Warning System written by United States. War Department and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1941 with Aeronautics, Military categories.
The Effectiveness Of Sonic Outdoor Warning Devices
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Author : United States. Federal Civil Defense Administration
language : en
Publisher:
Release Date : 1953
The Effectiveness Of Sonic Outdoor Warning Devices written by United States. Federal Civil Defense Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with Air raid warning systems categories.
The Effectiveness Of Sonic Outdoor Warning Devices Final Report
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Author : Federal Civil Defense Administration
language : en
Publisher:
Release Date : 1953
The Effectiveness Of Sonic Outdoor Warning Devices Final Report written by Federal Civil Defense Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1953 with categories.
Sonic outdoor warning devices were used extensively in World War II to alert the population for air raids. On the assumption that sufficient information exists on the effectiveness of different types of sonic outdoor warning devices used in World War II, the Federal Civil Defense Administration asked Stanford Research Institute to combine this information on effectiveness with information from psychological and acoustical studies to determine the best type of warning devices for present installations. This study was initiated to compare the coverage of various type signals and to provide information to the Federal Civil Defense Administration and local civil defense units that will be helpful in planning an effective air-raid warning system.