Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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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B29C66/80
General aspects of machine operations or constructions and parts thereof
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B29C66/84
Specific machine types or machines suitable for specific applications
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B29C66/865
Independently movable welding apparatus, e.g. on wheels
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B29C66/8652
being pushed by hand or being self-propelling
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