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公开(公告)号：US2068437A
公开(公告)日：1937-01-19
申请号：US1103135
申请日：1935-03-14
Applicant: EVA M STARR , PERFECTO GEAR DIFFERENTIAL CO
IPC: F16H3/56
CPC classification number: F16H3/56
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公开(公告)号：US2068438A
公开(公告)日：1937-01-19
申请号：US1103335
申请日：1935-03-14
Applicant: EVA M STARR , PERFECTO GEAR DIFFERONTIAL CO
CPC classification number: B60K17/16 , F16H3/64 , F16H37/046 , F16H48/08 , F16H2048/426
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