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公开(公告)号：US1887577A
公开(公告)日：1932-11-15
申请号：US34548929
申请日：1929-03-08
Applicant: EUSTACE BRIDGER THEO
Inventor： EUSTACE BRIDGER THEO
CPC classification number: C23C4/12 , B05B7/222 , Y10S118/16
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