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公开(公告)号：US1419656A
公开(公告)日：1922-06-13
申请号：US44001621
申请日：1921-01-26
Applicant: BAIRD WOOD DAVID TOMLINSON
Inventor： BAIRD WOOD DAVID TOMLINSON
IPC: A47B63/06
CPC classification number: A47B63/065 , Y10S402/501
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