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3683948
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Information
Patent Grant
3683948
References
Source
Patent Number
3,683,948
Date Filed
Not available
Date Issued
Tuesday, August 15, 1972
52 years ago
CPC
A45B25/02 - Umbrella frames
A45B19/00 - Special folding or telescoping of umbrellas
A45B25/16 - Automatic openers
A45B2019/002 - Umbrellas stored inside the stick when closed
US Classifications
135 - Tent, canopy, umbrella, or cane
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