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公开(公告)号：US1481909A
公开(公告)日：1924-01-29
申请号：US55211822
申请日：1922-04-13
Applicant: JONES ELLIS F
Inventor： JONES ELLIS F
IPC: F02F3/00
CPC classification number: F02F3/0023 , F05C2201/0448
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