Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B28
WORKING CEMENT, CLAY, OR STONE
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B28B
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
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B28B7/0029
Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
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B28B7/0035
Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding
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B28B7/0041
the sidewalls of the mould being moved only parallelly away from the sidewalls of the moulded article
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