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公开(公告)号：US3524248A
公开(公告)日：1970-08-18
申请号：US3524248D
申请日：1967-09-13
Applicant: HELLER GEB GMBH MASCHF
Inventor： DURR ALFRED W , GUNSSER OTTO C , HELLER HUBERT M
CPC classification number: B23Q3/1554 , B23Q3/157 , Y10T29/5105 , Y10T29/5107 , Y10T82/25 , Y10T408/36 , Y10T409/30448 , Y10T483/1752 , Y10T483/1781 , Y10T483/1882
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