Explore Books on
air raid warning systems

Attack warning

By United States. General Accounting Office

Attack warning

By United States. General Accounting Office

Air raid precautions

By Campbell McCutcheon

Shōwa 5-nen Bōkū Kenkyūkai kōenshū

By Bōkū Kōenkai (Japan)

The effectiveness of sonic outdoor warning devices

By Stanford Research Institute

Air raid warning system

By United States Department of War

Recommended family plan

By George Christopher,San Francisco Disaster Council and Corps,San Francisco (Calif.). Office of the Mayor

Outdoor sound systems for public air raid warning

By United States. Office of Civilian Defense

640 Conelrad 1240

By United States. Federal Civil Defense Administration

Subcommittee Hearings on H.R. 2546 To Authorize the Secretary of the Air Force To Establish Land-Based Air Warning and Control Installations for the National Security, and for Other Purposes

By United States. Congress. House. Committee on Armed Services. Subcommittee No. 3.

Administrative manual for the air raid wardens unit

By United States. Office of Civilian Defense.

Outdoor sound systems for public air raid warning

By

In case of attact, tune your AM radio dial to 640 or 1240 for official information

By United States. Federal Civil Defense Administration