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公开(公告)号:US2695764A
公开(公告)日:1954-11-30
申请号:US18638750
申请日:1950-09-23
Applicant: KONRAD GREBE
Inventor: KONRAD GREBE
IPC: E21D15/44
CPC classification number: E21D15/445
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公开(公告)号:US3390915A
公开(公告)日:1968-07-02
申请号:US49555465
申请日:1965-10-13
Applicant: KONRAD GREBE
Inventor: KONRAD GREBE
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公开(公告)号:US2757786A
公开(公告)日:1956-08-07
申请号:US17904550
申请日:1950-08-12
Applicant: KONRAD GREBE
Inventor: KONRAD GREBE
CPC classification number: B65G39/20 , B65G17/068 , B65G2201/04
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公开(公告)号:US3338380A
公开(公告)日:1967-08-29
申请号:US48656665
申请日:1965-09-10
Applicant: KONRAD GREBE
Inventor: KONRAD GREBE
CPC classification number: B65G17/385 , B65G21/20 , B65G39/02 , B65G2201/02 , B65G2201/04 , B65G2201/06
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5.
公开(公告)号:US2797586A
公开(公告)日:1957-07-02
申请号:US39911153
申请日:1953-12-18
Applicant: KONRAD GREBE
Inventor: KONRAD GREBE
CPC classification number: F16H7/06 , B65G23/00 , B65G2812/02306
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公开(公告)号:US2694484A
公开(公告)日:1954-11-16
申请号:US20754851
申请日:1951-01-24
Applicant: KONRAD GREBE
Inventor: KONRAD GREBE
IPC: B65G17/06
CPC classification number: B65G17/065 , B65G17/063 , B65G2201/06
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7.Traveling prop system for a mine working face having a steep,or semi-steep,or flat orientation 失效
Title translation: 具有施肥,或半干或平面定向的矿山工作面的行驶推进系统公开(公告)号:US3536433A
公开(公告)日:1970-10-27
申请号:US3536433D
申请日:1969-03-10
Applicant: INGBUERO KONRAD GREBE
Inventor: GREBE KONRAD
CPC classification number: E21D23/0082 , E21D23/0409
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8.Hydraulic propping apparatus with automatic overload protection means 失效
Title translation: 具有自动过载保护装置的液压支撑装置公开(公告)号:US3395619A
公开(公告)日:1968-08-06
申请号:US51164565
申请日:1965-12-06
Applicant: KONRAD GREBE
Inventor: KONRAD GREBE
IPC: E21D15/44
CPC classification number: E21D15/44
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