Assignee

SIGMA KONCERN

CS·2 granted patents·42 citations·filing 1981–1983

Technology mixB21D2 B21K2 B21C1 B21J1

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2 records

0172US4434645AApparatus for the radial shaping of tubular articlesSIGMA KONCERN·Filed 1981·Granted Mar 6, 1984·33 cites·14 claims
0242US4489588AApparatus for manufacturing screw workpieces of a tube semi-productSIGMA KONCERN·Filed 1983·Granted Dec 25, 1984·9 cites·4 claims

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