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2801688
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Information
Patent Grant
2801688
References
Source
Patent Number
2,801,688
Date Filed
Not available
Date Issued
Tuesday, August 6, 1957
67 years ago
CPC
E06B3/726 - of metal
E06B3/24 - specially adapted for double glazing
E06B3/2605 - with frames permanently mounted behind or within each other, each provided with a pane or screen
E06B3/7009 - Door leaves with two similar parts placed one above the other, pivoting separately
E06B2003/2615 - Frames made of metal
US Classifications
160 - Flexible or portable closure, partition, or panel
049 - Movable or removable closures
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