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公开(公告)号：US1285019A
公开(公告)日：1918-11-19
申请号：US6953115
申请日：1915-12-31
Applicant: BULLARD MACHINE TOOL COMPANY
Inventor： BULLARD EDWARD P JR , STEVENS WILLIAM N
IPC: B23B47/18
CPC classification number: B23Q39/042 , Y10T29/5128 , Y10T29/5179
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公开(公告)号：US1250556A
公开(公告)日：1917-12-18
申请号：US8660116
申请日：1916-03-25
Applicant: BULLARD MACHINE TOOL COMPANY
Inventor： BULLARD EDWARD P JR , STEVENS WILLIAM N
CPC classification number: B23Q39/042 , Y10T29/5128 , Y10T82/2562
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公开(公告)号：US1258089A
公开(公告)日：1918-03-05
申请号：US1914811198
申请日：1914-01-09
Applicant: BULLARD MACHINE TOOL COMPANY
Inventor： BULLARD EDWARD P JR , STEVENS WILLIAM N
CPC classification number: B23Q39/042 , Y10T29/5128
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