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3089540
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Information
Patent Grant
3089540
References
Source
Patent Number
3,089,540
Date Filed
Not available
Date Issued
Tuesday, May 14, 1963
61 years ago
CPC
E06B9/76 - using crank handles
E06B9/17061 - Connection of the box to the guides
US Classifications
160 - Flexible or portable closure, partition, or panel
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