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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B29D
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
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30/00
Producing pneumatic or solid tyres or parts thereof
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B29D30/06
Pneumatic tyres or parts thereof; (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
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B29D30/20
by the flat-tyre method, i.e. building on cylindrical drums
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B29D30/244
for manufacturing substantially cylindrical tyre components with cores or beads, e.g. carcasses
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B29D30/246
Drums for the multiple stage building process, i.e. the building-up of the cylindrical carcass is realised on one drum and the toroidal expansion is realised after transferring on another drum
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B29D30/247
Arrangements for the first stage only, e.g. means for radially expanding the drum to lock the beads
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