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公开(公告)号：US2690081A
公开(公告)日：1954-09-28
申请号：US17739650
申请日：1950-08-03
Applicant: DENTATUS AB
Inventor： ERIK BJORKLUND GUSTAF , AKE LINDBLOM KARL
CPC classification number: B24B23/04 , B23D67/00 , Y10T74/18208 , Y10T74/2146 , Y10T74/2179 , Y10T74/2183
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