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公开(公告)号：US2659110A
公开(公告)日：1953-11-17
申请号：US22290551
申请日：1951-04-25
Applicant: DAVEY COMPRESSOR CO
Inventor： CARROLL ROBERT P
CPC classification number: E04B1/3444 , E04H15/20 , E04H2015/202
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