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公开(公告)号:US1464551A
公开(公告)日:1923-08-14
申请号:US52459421
申请日:1921-12-24
Applicant: ALEXANDER URQUHART
Inventor: ALEXANDER URQUHART
IPC: B23B31/40
CPC classification number: B23B31/4006 , Y10T82/268 , Y10T279/1079
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公开(公告)号:US1519386A
公开(公告)日:1924-12-16
申请号:US64216223
申请日:1923-05-29
Applicant: ALEXANDER URQUHART
Inventor: ALEXANDER URQUHART
IPC: F16D15/00
CPC classification number: F16D15/00 , Y10T279/35
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公开(公告)号:US1514641A
公开(公告)日:1924-11-11
申请号:US63551123
申请日:1923-04-30
Applicant: ALEXANDER URQUHART
Inventor: ALEXANDER URQUHART
IPC: B23B31/40
CPC classification number: B23B31/4006 , Y10T279/1074 , Y10T279/17196
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公开(公告)号:US1514640A
公开(公告)日:1924-11-11
申请号:US68532123
申请日:1923-04-28
Applicant: ALEXANDER URQUHART
Inventor: ALEXANDER URQUHART
IPC: B23B31/20
CPC classification number: B23B31/201 , Y10T279/17444
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