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公开(公告)号:US2702698A
公开(公告)日:1955-02-22
申请号:US11455249
申请日:1949-09-08
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H , HILL JAMES M
IPC: E21C35/18
CPC classification number: E21C35/18
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公开(公告)号:US2702712A
公开(公告)日:1955-02-22
申请号:US11455349
申请日:1949-09-08
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H , TURNER DOUGLAS A
IPC: E21C35/19
CPC classification number: E21C35/19 , Y10T279/17786 , Y10T403/4648
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3.Continuous mining machine with vertically separable cutter carrying units 失效
Title translation: 连续采矿机具有垂直分离刀片承载单元公开(公告)号:US2877999A
公开(公告)日:1959-03-17
申请号:US11455149
申请日:1949-09-08
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H , TURNER DOUGLAS A , CALVIN FUNK HARRY
IPC: E21C27/22
CPC classification number: E21C27/22
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4.
公开(公告)号:US2878001A
公开(公告)日:1959-03-17
申请号:US11455649
申请日:1949-09-08
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H , CALVIN FUNK HARRY
IPC: E21C27/22
CPC classification number: E21C27/22
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公开(公告)号:US2776123A
公开(公告)日:1957-01-01
申请号:US31641952
申请日:1952-10-23
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H
IPC: E21C27/22
CPC classification number: E21C27/22
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公开(公告)号:US2776040A
公开(公告)日:1957-01-01
申请号:US27894052
申请日:1952-03-27
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H
CPC classification number: B65G17/066 , B65G2201/04 , E21F13/02
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7.Intermittent mining machine with turntable mounted rotary chipping heads 失效
Title translation: 间歇式采矿机带转盘安装旋转切屑头公开(公告)号:US2740618A
公开(公告)日:1956-04-03
申请号:US11455549
申请日:1949-09-08
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H , CALVIN FUNK HARRY
IPC: E21C27/22
CPC classification number: E21C27/22
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公开(公告)号:US2694562A
公开(公告)日:1954-11-16
申请号:US1262648
申请日:1948-03-02
Applicant: COLMOL COMPANY
Inventor: SNYDER CLIFFORD H , LAMM ARNOLD E , CAROTHERS WILLIAM D , MCCARTHY VINCENT J
IPC: E21C27/22
CPC classification number: E21C27/22
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