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公开(公告)号:US3437389A
公开(公告)日:1969-04-08
申请号:US3437389D
申请日:1967-08-03
Applicant: PENDLETON TOOL IND INC
Inventor: PERKINS GEORGE D , WORKMAN DAVID E , KNEIER JOSEPH W
公开(公告)号:US3437389A
公开(公告)日:1969-04-08
申请号:US3437389D
申请日:1967-08-03
Applicant: PENDLETON TOOL IND INC
Inventor: PERKINS GEORGE D , WORKMAN DAVID E , KNEIER JOSEPH W