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Inventor
HELSPER GUENTER
DE
2 patents
Patents
2 patents
US5842447A
Dec 1, 1998
Cylinder block of an internal-combustion engine
PORSCHE AG
16 citations
67
US4421340A
Dec 20, 1983
Coupling means comprising a centering device and a locking mechanism for a motor driven utility unit having a complementary unit
PORSCHE AG
10 citations
67