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3633646
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Information
Patent Grant
3633646
References
Source
Patent Number
3,633,646
Date Filed
Not available
Date Issued
Tuesday, January 11, 1972
52 years ago
CPC
E06B9/322 - Details of operating devices
E06B9/305 - with tilting bar and raising cords guided along fixed bar
E06B9/326 - Details of cords
US Classifications
160 - Flexible or portable closure, partition, or panel
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