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公开(公告)号:CH266432A
公开(公告)日:1950-01-31
申请号:CH266432D
申请日:1947-12-12
Applicant: DODD JOHN
Inventor: JOHN DODD
IPC: B23B31/08 , B23G1/46 , B23Q11/04 , F16B12/40 , F16D7/02