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公开(公告)号：US2531794A
公开(公告)日：1950-11-28
申请号：US58931745
申请日：1945-04-20
Applicant: SCHWITZER CUMMINS COMPANY
Inventor： WALMSLEY DAVID C
CPC classification number: F04B9/14 , B66F3/42 , F04B53/126 , F04B2205/151
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公开(公告)号：US2488356A
公开(公告)日：1949-11-15
申请号：US59306945
申请日：1945-05-10
Applicant: SCHWITZER CUMMINS COMPANY
Inventor： WALMSLEY DAVID C
IPC: B62B3/065
CPC classification number: B62B3/0618
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