| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Convertible freight-car | US1311906D | US1311906A | 1919-08-05 | ||
| 22 | Convertible dumping-car. | US23199618 | 1918-05-02 | US1281287A | 1918-10-15 | CAMPBELL ARGYLE |
| 23 | Dumping-car. | US15635417 | 1917-03-21 | US1268588A | 1918-06-04 | LICHTENSTEIN ALEXANDER |
| 24 | Car side construction. | US1914813431 | 1914-01-21 | US1267834A | 1918-05-28 | YOST WINFIELD HANCOCK |
| 25 | Car-construction. | US1914842900 | 1914-06-04 | US1251609A | 1918-01-01 | YOST WINFIELD HANCOCK |
| 26 | Car. | US1909491861 | 1909-04-23 | US1192971A | 1916-08-01 | YOST WINFIELD HANCOCK |
| 27 | Car side construction. | US1913805801 | 1913-12-10 | US1190357A | 1916-07-11 | YOST WINFIELD HANCOCK |
| 28 | Combined plow, gondola, and ballast car. | US1913788524 | 1913-09-08 | US1125959A | 1915-01-26 | CAMPBELL ARGYLE |
| 29 | Ballast-car. | US1912720367 | 1912-09-14 | US1116863A | 1914-11-10 | YOST WINFIELD HANCOCK |
| 30 | Hopper-door mechanism. | US1913786043 | 1913-08-21 | US1109602A | 1914-09-01 | STEINMEYER JOHN W |
| 31 | Grain-hopper. | US1912737236 | 1912-12-17 | US1109601A | 1914-09-01 | STEINMEYER JOHN M |
| 32 | Dump-car. | US1912719828 | 1912-09-11 | US1096351A | 1914-05-12 | BURNETT RICHARD WEBB |
| 33 | Hopper-bottom dump-car. | US1912702643 | 1912-06-10 | US1071141A | 1913-08-26 | CLASEN CLAUS J WERNER |
| 34 | Car-door-locking device. | US1912710265 | 1912-07-18 | US1069762A | 1913-08-12 | BURNETT RICHARD WEBB |
| 35 | Convertible box-car. | US1913746983 | 1913-02-08 | US1067719A | 1913-07-15 | CURRY HARRY WILMER |
| 36 | Car-door-operating mechanism. | US1911613969 | 1911-03-13 | US1041045A | 1912-10-15 | DITCHFIELD FRANK |
| 37 | Convertible car. | US1911600535 | 1911-01-03 | US1025609A | 1912-05-07 | CLASEN CLAUS J WERNER |
| 38 | Dump-car. | US1908467544 | 1908-12-14 | US1022748A | 1912-04-09 | MEISSNER OTTO WILLIAM |
| 39 | Dump-car. | US1909519865 | 1909-09-27 | US1018389A | 1912-02-20 | HART HARRY S |
| 40 | Dump-car. | US1906349104 | 1906-12-22 | US1000175A | 1911-08-08 | INGOLDSBY FRANK S |
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