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公开(公告)号:US1864126A
公开(公告)日:1932-06-21
申请号:US38933629
申请日:1929-08-30
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
IPC: F16D67/04
CPC classification number: F16D67/04
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公开(公告)号:US1502310A
公开(公告)日:1924-07-22
申请号:US67464023
申请日:1923-11-14
Applicant: OILGEAR CO
Inventor: MAGIE WILLIAM E , WALTER FERRIS
CPC classification number: F01B1/0689 , F01B1/0644 , F01B1/0668 , F01B13/062
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43.Steering control for industrial truck with hydraulic wheel drive motors 失效
Title translation: 带液压轮驱动电机的工业车辆转向控制公开(公告)号:US2774434A
公开(公告)日:1956-12-18
申请号:US35423353
申请日:1953-05-11
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
CPC classification number: F16H61/427 , B62D5/07 , B62D11/02 , B66F9/07568 , F16H61/437 , F16H61/456
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公开(公告)号:US2728302A
公开(公告)日:1955-12-27
申请号:US21935551
申请日:1951-04-05
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
CPC classification number: F04B1/1077 , F04B1/0413 , F04B1/0421 , F04B1/0456 , F04B1/0465 , F04B1/1071 , F04B1/2035 , F04B1/2042
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46.
公开(公告)号:US2716944A
公开(公告)日:1955-09-06
申请号:US43166054
申请日:1954-05-24
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
CPC classification number: F04B13/02 , F04B1/0408 , F04B1/0465 , F04B1/1077 , F04B23/06 , F04B49/002 , F04B49/123
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公开(公告)号:US2646003A
公开(公告)日:1953-07-21
申请号:US6888049
申请日:1949-01-03
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
IPC: F04C14/20
CPC classification number: F04C14/20
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公开(公告)号:US2484337A
公开(公告)日:1949-10-11
申请号:US48527943
申请日:1943-05-01
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
CPC classification number: F01B13/065 , F01B1/0648 , F01B1/0689 , F03C1/0444 , F04B23/103
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公开(公告)号:US2427325A
公开(公告)日:1947-09-09
申请号:US54836044
申请日:1944-08-07
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
IPC: F01B1/06
CPC classification number: F01B1/0655 , F01B1/0644 , Y10T74/18024
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公开(公告)号:US2397343A
公开(公告)日:1946-03-26
申请号:US36606140
申请日:1940-11-18
Applicant: OILGEAR CO
Inventor: WALTER FERRIS
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