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公开(公告)号：US1466089A
公开(公告)日：1923-08-28
申请号：US48186821
申请日：1921-07-01
Applicant: CONROY EDGAR A
Inventor： CONROY EDGAR A
IPC: F02M31/087 , F02M63/00
CPC classification number: F02M31/087 , F02M63/00 , F02M2700/05 , Y02T10/126
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