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公开(公告)号：US1835575A
公开(公告)日：1931-12-08
申请号：US34312329
申请日：1929-02-27
Applicant: GEN MOTORS CORP
Inventor： SANDERS RUFUS C , SUMMERS CALEB E
IPC: B25B27/28
CPC classification number: B25B27/28 , Y10T29/4967 , Y10T29/49844 , Y10T29/49913 , Y10T29/49929 , Y10T403/455
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公开(公告)号：US1784555A
公开(公告)日：1930-12-09
申请号：US26628228
申请日：1928-03-31
Applicant: GEN MOTORS CORP
Inventor： SUMMERS CALEB E
IPC: F01L3/08
CPC classification number: F01L3/08
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