B31B 70/642
Uniting opposed surfaces or edges; Taping by applying heat or pressure {using sealing jaws or sealing dies}
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Edits on 9 Mar, 2022
Golden AI
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Description (+107 characters)
B31B 70/642
Uniting opposed surfaces or edges; Taping by applying heat or pressure {using sealing jaws or sealing dies}
Infobox
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