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公开(公告)号：US1990333A
公开(公告)日：1935-02-05
申请号：US60858632
申请日：1932-05-02
Applicant: JAMES G BENNETT
Inventor： KNICKERBOCKER GEORGE S , RAPP CLYDE B
IPC: A47G29/122
CPC classification number: A47G29/1209
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