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公开(公告)号:US1708917A
公开(公告)日:1929-04-09
申请号:US27988428
申请日:1928-05-23
Applicant: AMERICAN FORK & HOE CO
Inventor: FIFIELD ALBERT F
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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公开(公告)号:US1706926A
公开(公告)日:1929-03-26
申请号:US18438827
申请日:1927-04-16
Applicant: LARMONTH JOHN H
Inventor: LARMONTH JOHN H
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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公开(公告)号:US1705295A
公开(公告)日:1929-03-12
申请号:US27653028
申请日:1928-05-10
Applicant: CHICAGO RAILWAY EQUIPMENT CO
Inventor: LOUIS KADAR
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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公开(公告)号:US1699195A
公开(公告)日:1929-01-15
申请号:US25841028
申请日:1928-03-01
Applicant: KNAPP CLARENCE M
Inventor: KNAPP CLARENCE M
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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公开(公告)号:US1680438A
公开(公告)日:1928-08-14
申请号:US20880027
申请日:1927-07-27
Applicant: P & M CO
Inventor: WARR HAROLD G
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/02 , E01B2201/08 , Y10T29/53896
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公开(公告)号:US1666716A
公开(公告)日:1928-04-17
申请号:US20094527
申请日:1927-06-23
Applicant: BARRINGTON MEYER PERCY
Inventor: BARRINGTON MEYER PERCY
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/02 , E01B2201/08
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公开(公告)号:US1665696A
公开(公告)日:1928-04-10
申请号:US5306225
申请日:1925-08-28
Applicant: GILLMOR HORATIO G
Inventor: GILLMOR HORATIO G
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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公开(公告)号:US1648084A
公开(公告)日:1927-11-08
申请号:US1118225
申请日:1925-02-24
Applicant: P & M CO
Inventor: WARR HAROLD G
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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公开(公告)号:US1647376A
公开(公告)日:1927-11-01
申请号:US15678726
申请日:1926-12-24
Applicant: EDWARD SMITH JOSEPH
Inventor: EDWARD SMITH JOSEPH
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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公开(公告)号:US1646512A
公开(公告)日:1927-10-25
申请号:US5733825
申请日:1925-09-19
Applicant: WESTON WILLIAM S
Inventor: WESTON WILLIAM S
IPC: E01B13/02
CPC classification number: E01B13/02 , E01B2201/08
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