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3739832
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Information
Patent Grant
3739832
References
Source
Patent Number
3,739,832
Date Filed
Not available
Date Issued
Tuesday, June 19, 1973
52 years ago
CPC
E06B9/60 - Spring drums operated only by closure members
E06B9/18 - Roll-type grilles
E06B9/70 - comprising an electric motor positioned outside the roller
US Classifications
160 - Flexible or portable closure, partition, or panel
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