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Class Information
Number: 92/259
Name: Expansible chamber devices > Piston > Plural separable parts > Side wall portion and relatively movable piston part having abutting inclined surfaces
Description: Apparatus in which the piston includes a side wall portion which abuts and is movable relative to another part, the abutting surfaces of said side wall portion and the other part being bevelled.
Patents under this class:
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