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1442693
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Patent Grant
1442693
References
Source
Patent Number
1,442,693
Date Filed
Not available
Date Issued
Tuesday, January 16, 1923
101 years ago
CPC
D06J1/04 - by co-operating ribbed or grooved rollers or belts
US Classifications
223 - Apparel apparatus
493 - Manufacturing container or tube from paper
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