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公开(公告)号：US2578167A
公开(公告)日：1951-12-11
申请号：US69771046
申请日：1946-09-18
Applicant: DENTATUS AB
Inventor： ERIK BJORKLUND GUSTAF , HAYDEN WESTBERG JOHAN ERIC
CPC classification number: B24D18/0018 , B24D3/08 , B24D3/10 , B24D7/00 , B24D7/02 , B24D18/00 , Y10T428/12153 , Y10T428/12479
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