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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44/00
Shaping by internal pressure generated in the material, e.g. swelling or foaming; ; Producing porous or cellular expanded plastics articles
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B29C44/36
Feeding the material to be shaped
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B29C44/38
into a closed space, i.e. to make articles of definite length
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