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3485421
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Information
Patent Grant
3485421
References
Source
Patent Number
3,485,421
Date Filed
Not available
Date Issued
Tuesday, December 23, 1969
55 years ago
CPC
B31B37/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents from webs
B31B2221/055 - Applying liners in already made bags
US Classifications
223 - Apparel apparatus
059 - Chain, staple, and horseshoe making
493 - Manufacturing container or tube from paper
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