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公开(公告)号:US1415352A
公开(公告)日:1922-05-09
申请号:US37345520
申请日:1920-04-12
Applicant: STANDARD OIL CO
Inventor: HOWARD FRANK A , JENNINGS JAMES M
IPC: A62C3/06
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公开(公告)号:US1415351A
公开(公告)日:1922-05-09
申请号:US37345420
申请日:1920-04-12
Applicant: STANDARD OIL CO
Inventor: HOWARD FRANK A , ROBINSON CLARENCE I , JENNINGS JAMES M
IPC: A62C3/06
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公开(公告)号:US1394921A
公开(公告)日:1921-10-25
申请号:US41883120
申请日:1920-10-22
Applicant: STANDARD OIL CO
Inventor: MCKENZIE-MARTYN EDWARD C , HOWARD FRANK A
IPC: F02N99/00
CPC classification number: F02N99/008 , Y10S261/08
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