Information on ultraviolet transparency of window materials and fabrics
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Publication
1944 - , Washington, District of Columbia
Language
English
Word Count
0 words, Guess
Page Count
0 pages
Identifiers
- OCLC Control Number45126557
- Open LibraryOL52362328M
Subjects
Series Statement
- Its Letter circular -- LC-760 (Supersedes Letter circulars nos. 235, 429, 511 and 549, and Form letter LC113)
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