IPIQ

PERFORMING OPERATIONS; TRANSPORTING

B29

WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C

SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

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66/00

General aspects of processes or apparatus for joining preformed parts

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B29C66/40

General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces

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B29C66/41

Joining substantially flat articles; ; Making flat seams in tubular or hollow articles

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B29C66/43

Joining a relatively small portion of the surface of said articles

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B29C66/431

Joining the articles to themselves

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B29C66/4312

for making flat seams in tubular or hollow articles, e.g. transversal seams

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B29C66/43121

Closing the ends of tubular or hollow single articles, e.g. closing the ends of bags

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Patent classifications