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公开(公告)号：US1796393A
公开(公告)日：1931-03-17
申请号：US30530228
申请日：1928-09-11
Applicant: EV AIR TIGHT CALKING CO
Inventor： ASHLEY PEDRICK HOWARD
IPC: B05C17/015
CPC classification number: B05C17/015 , B05C17/0136 , B05C17/0146
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