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Patent - Bag with handle of weldable plastic material

Google Patents

Published: 

October 7, 1962

Google Patents
🡥

https://patents.google.com/patent/US3180557A/en?q=B65D31%2f10&inventor=thulin%27&assignee=Celloplast+Ab

Patent - Bag with handle of weldable plastic material

Key finding

In 1965

the original patent was improved upon to add cutout handles

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