Report of Test on Sirens, Types S-3, S-4 Submitted by Clark Cooper Company
Abstract
The sample sirens were set up at this laboratory in suitable test circuits where there performance was carefully observed for compliance with the requirements. An inspection of the sirens to determine compliance with the specifications in the matter of materials, design and workmanship concluded the test.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 25, 1938
- Accession Number
- AD1155981
Entities
People
- J. R. Coomes
- W. B. Roberts
Organizations
- United States Naval Research Laboratory