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公开(公告)号:US1823203A
公开(公告)日:1931-09-15
申请号:US26483928
申请日:1928-03-26
Applicant: DUAL MOTORS LTD
Inventor: EMIL KNECHT
IPC: H02K5/24
CPC classification number: H02K5/24
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公开(公告)号:US1763792A
公开(公告)日:1930-06-17
申请号:US26483728
申请日:1928-03-26
Applicant: DUAL MOTORS LTD
Inventor: EMIL KNECHT
IPC: F03G1/08
CPC classification number: F03G1/08 , Y10T74/19512 , Y10T74/19565
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