子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Hopper vehicle construction | US3524414D | 1968-06-24 | US3524414A | 1970-08-18 | JOHNSON KENT N; JOHNSTONE BRADFORD |
| 122 | Small hatch and cover in an elongated hatch cover | US3523506D | 1968-01-02 | US3523506A | 1970-08-11 | WILLIAMS ROBERT ARTHUR |
| 123 | Aluminum railway hopper car | US3509827D | 1967-12-14 | US3509827A | 1970-05-05 | SUTTER ROBERT F |
| 124 | Railway hopper car | US39949864 | 1964-09-28 | US3339499A | 1967-09-05 | FRANKLIN CHARLES ASA; LEE RICHARD A |
| 125 | Railway hopper car body provided with an elongated loading hatch in the roof thereof | US38774564 | 1964-08-06 | US3266440A | 1966-08-16 | PRICE ALBERT E; SHILS LEE H |
| 126 | Hatch cover structure | US34156264 | 1964-01-31 | US3250233A | 1966-05-10 | CARNEY JR JOHN L; ROLF MOWATT-LARSSEN |
| 127 | Hatch cover for railway cars | US28900563 | 1963-06-19 | US3190238A | 1965-06-22 | CARNEY JR JOHN L; TROMPETER BERNARD A |
| 128 | Hatch cover for railway cars | US28422663 | 1963-05-29 | US3155052A | 1964-11-03 | CARNEY JR JOHN L |
| 129 | Method of assembling rairoad cars | US4186648 | 1948-07-31 | US2671957A | 1954-03-16 | SHEFFER JOHN W; WATSON EDMUND A; SCHANZ ARTHUR C |
| 130 | Cover construction for hopper cars | US21914151 | 1951-04-04 | US2664832A | 1954-01-05 | SWANN JAMES S |
| 131 | Car roof hatch cover operating mechanism | US23257051 | 1951-06-20 | US2647473A | 1953-08-04 | LUNDE EINAR O |
| 132 | Hatch covers and locking means therefor | US53835344 | 1944-06-02 | US2405040A | 1946-07-30 | THORVALD MADLAND |
| 133 | Railway car wall | US48869343 | 1943-05-27 | US2403467A | 1946-07-09 | SWANN JAMES S |
| 134 | Railway hopper car | US7784436 | 1936-05-04 | US2072996A | 1937-03-09 | WINE WILLIAM E |
| 135 | Hopper car | US67426433 | 1933-06-05 | US2047289A | 1936-07-14 | PFLAGER HARRY M; HALLQUIST EINAR G; SHEEHAN WILLIAM M |
| 136 | Railway car | US53384831 | 1931-04-29 | US2020391A | 1935-11-12 | WINE WILLIAM E |
| 137 | Car underframe | US59965032 | 1932-03-18 | US2015190A | 1935-09-24 | PFLAGER HARRY M |
| 138 | Hopper car | US48203430 | 1930-09-15 | US1985380A | 1934-12-25 | PFLAGER HARRY M; HALLQUIST EINAR G |
| 139 | Railway hopper car | US47936530 | 1930-09-02 | US1862781A | 1932-06-14 | WINE WILLIAM E |
| 140 | Hopper car | US27607828 | 1928-05-08 | US1760601A | 1930-05-27 | ADOLPH KASSLER |
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