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1988948
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Information
Patent Grant
1988948
References
Source
Patent Number
1,988,948
Date Filed
Not available
Date Issued
Tuesday, January 22, 1935
90 years ago
CPC
E06B9/78 - for direct manual operation
E06B9/82 - automatic
E06B2009/425 - Pull chain or cord attached to bottom edge of screen
US Classifications
160 - Flexible or portable closure, partition, or panel
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