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公开(公告)号:US2858816A
公开(公告)日:1958-11-04
申请号:US68891157
申请日:1957-10-08
Applicant: PRENTICE LEON A
Inventor: PRENTICE LEON A
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公开(公告)号:US2843095A
公开(公告)日:1958-07-15
申请号:US56954256
申请日:1956-03-05
Applicant: PRENTICE LEON A
Inventor: PRENTICE LEON A
CPC classification number: F01L1/06 , F02B2075/027 , F02B2275/22 , F16H53/08
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