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公开(公告)号:US2060747A
公开(公告)日:1936-11-10
申请号:US71006834
申请日:1934-02-07
Applicant: DETROIT LUBRICATOR CO
Inventor: RAYFIELD WILLIAM C
IPC: F02M21/00
CPC classification number: F02M21/00 , F02M2700/13
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公开(公告)号:US2012248A
公开(公告)日:1935-08-20
申请号:US64414332
申请日:1932-11-25
Applicant: DETROIT LUBRICATOR CO
Inventor: RAYFIELD WILLIAM C
CPC classification number: F02M19/0217 , F02M1/00 , F02M7/08 , F02M9/106 , F02M2700/4338
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