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公开(公告)号：US2697939A
公开(公告)日：1954-12-28
申请号：US18176850
申请日：1950-08-28
Applicant: GEN MOTORS CORP
Inventor： MARTIN EDWARD J , QUINN CLARK E , JOHN ROSS
IPC: G01F9/02
CPC classification number: G01F9/023
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公开(公告)号：US2067984A
公开(公告)日：1937-01-19
申请号：US62941432
申请日：1932-08-19
Applicant: GEN MOTORS CORP
Inventor： JOHN ROSS
IPC: F02D9/00
CPC classification number: F02D9/00 , F02D2700/0258
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