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Venetian blind
United States Patent 3141497
US Patent References:
Traverse roller for venetian blinds
- - 1978152
Venetian blind
- - 2152116
Venetian blind
- - 2374591
Venetian blind
- - 2405255
Automatically operated venetian blind
- - 2520629
Inventors:
Fritz, Griesser
Publication Date:
07/21/1964
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Download PDF 3141497
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Assignee:
GRIESSER AG
Primary Class:
160/170
International Classes:
E06B9/308
;
E06B9/32
;
E06B9/28
US Patent References:
2598887
Lift roller for venetian blinds
Foreign References:
DE33551C