Title:
Closure structure
Document Type and Number:
United States Patent 2639766

Inventors:
Pratt, Raymond C.
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Sponsored by:
Flash of Genius
Publication Date:
05/26/1953
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Referenced by:
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Assignee:
Pratt, Raymond C.
Primary Class:
160/40
Other Classes:
160/172R, 160/344
International Classes:
E06B9/327; E06B9/28
US Patent References:
RE21518
0279835
0444302
1013417
1787158Guide for venetian blinds
1914050Venetian blind
2059134Window shade
2090145Venetian blind or the like
2128163Spring controlled venetian blind
2164556Venetian blind
2187242Venetian blind
2209276Venetian blind
2212718Blind
2229221Venetian blind
2248775Venetian blind
2255311Venetian blind
2268858Blind and curtain
2428197Venetian blind fixture


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