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1.Method of and means for making double chamfered nuts or the like 失效
Title translation: 制造双倒角螺母等的方法和装置公开(公告)号:US2547801A
公开(公告)日:1951-04-03
申请号:US58963445
申请日:1945-04-21
Applicant: WATERBURY FARREL FOUNDRY & MAC
Inventor: LESTER WILCOX RICHARD
IPC: B21K1/64
CPC classification number: B21K1/64
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公开(公告)号:US2393850A
公开(公告)日:1946-01-29
申请号:US56880144
申请日:1944-12-19
Applicant: WATERBURY FARREL FOUNDRY & MAC
Inventor: LESTER WILCOX RICHARD
IPC: B21K1/64
CPC classification number: B21K1/64 , Y10T428/12243
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公开(公告)号:US2401805A
公开(公告)日:1946-06-11
申请号:US54791444
申请日:1944-08-03
Applicant: WATERBURY FARREL FOUNDRY & MAC
Inventor: LESTER WILCOX RICHARD
IPC: B21J13/14
CPC classification number: B21J13/14
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公开(公告)号:US2540852A
公开(公告)日:1951-02-06
申请号:US68119446
申请日:1946-07-03
Applicant: WATERBURY FARREL FOUNDRY & MAC
Inventor: LESTER WILCOX RICHARD
CPC classification number: B21D28/16 , B21K1/64 , Y10T29/49995 , Y10T83/263
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公开(公告)号:US2499341A
公开(公告)日:1950-02-28
申请号:US54791344
申请日:1944-08-03
Applicant: WATERBURY FARREL FOUNDRY & MAC
Inventor: LESTER WILCOX RICHARD
IPC: B21K1/44
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公开(公告)号:US2432844A
公开(公告)日:1947-12-16
申请号:US53222244
申请日:1944-04-22
Applicant: WATERBURY FARREL FOUNDRY & MAC
Inventor: LESTER WILCOX RICHARD
IPC: B21K1/70
CPC classification number: B21K1/707
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