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公开(公告)号：US2927759A
公开(公告)日：1960-03-08
申请号：US55385255
申请日：1955-12-19
Applicant: FISCHEL FRANK M
Inventor： FISCHEL FRANK M
CPC classification number: F16B11/006 , A47G1/1606 , A47K2201/00
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