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公开(公告)号：US1661188A
公开(公告)日：1928-03-06
申请号：US15302426
申请日：1926-12-06
Applicant: MATTHEWS ALBERT K
Inventor： MATTHEWS ALBERT K
IPC: A47G29/02
CPC classification number: F16B45/00 , A47K2201/02 , F16B21/02
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