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公开(公告)号：US3195248A
公开(公告)日：1965-07-20
申请号：US21438062
申请日：1962-08-02
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
IPC: E02F3/352
CPC classification number: E02F3/352
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2.发明授权Method of spotting pivotal centers for swinging link structure of folding gooseneck trailer hitch 失效折叠鹅颈式拖车搭接摆动连杆结构枢轴中心点的方法
公开(公告)号：US2772008A
公开(公告)日：1956-11-27
申请号：US29597252
申请日：1952-06-27
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
IPC: B62D53/06
CPC classification number: B62D53/065
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公开(公告)号：US2730376A
公开(公告)日：1956-01-10
申请号：US24171251
申请日：1951-08-14
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
IPC: B62D53/08
CPC classification number: B62D53/0857
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公开(公告)号：US2717802A
公开(公告)日：1955-09-13
申请号：US25979851
申请日：1951-12-04
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
IPC: B62D53/06
CPC classification number: B62D53/061
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公开(公告)号：US2687225A
公开(公告)日：1954-08-24
申请号：US24653551
申请日：1951-09-14
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
CPC classification number: B60P3/07 , B62D53/065
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Patent Agency Ranking
公开(公告)号：US2656195A
公开(公告)日：1953-10-20
申请号：US3883748
申请日：1948-07-15
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
CPC classification number: B62D53/065 , B60P1/6454 , B62D53/0842
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公开(公告)号：US978179A
公开(公告)日：1910-12-13
申请号：US1909525363
申请日：1909-10-29
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
CPC classification number: A01D29/00
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公开(公告)号：US800662A
公开(公告)日：1905-10-03
申请号：US1904200138
申请日：1904-03-26
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
CPC classification number: A01D78/1078
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9.发明授权
公开(公告)号：US3592273A
公开(公告)日：1971-07-13
申请号：US3592273D
申请日：1968-01-18
Applicant: MARTIN WILLIAM E
Inventor： MARTIN WILLIAM E
IPC: A01B31/00 , A01B59/048
CPC classification number: A01B59/048 , A01B31/00
Abstract: This is a bodily attachable unitary bulldozing apparatus for conventional farm tractors or similar mobile power units and comprises a completely operable mechanism to manipulate a bulldozing blade as required to position such blade upwardly or downwardly as well as at a transverse angle in a vertical plane in relation to the surface being worked.
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10.发明授权Scraper bowl manipulating apparatus attachable with and operable from an attendant vehicle 失效可从附件车辆连接并可操作的刮刀式操纵装置
公开(公告)号：US3427736A
公开(公告)日：1969-02-18
申请号：US3427736D
申请日：1966-01-03
Applicant: MARTIN WILLIAM E , MARTIN CO
Inventor： MARTIN WILLIAM E
CPC classification number: E02F3/652 , E02F3/6481 , E02F3/656
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