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公开(公告)号：US1765556A
公开(公告)日：1930-06-24
申请号：US21529327
申请日：1927-08-25
Applicant: JOHN WILKINSON
Inventor： JOHN WILKINSON
IPC: F01L7/02
CPC classification number: F01L7/022
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公开(公告)号：US1497422A
公开(公告)日：1924-06-10
申请号：US49569921
申请日：1921-08-26
Applicant: JOHN WILKINSON
Inventor： JOHN WILKINSON
IPC: F02M1/00
CPC classification number: F02M1/00 , F02M2700/4333 , Y10T403/32861
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