| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Car underframe | US59961032 | 1932-03-18 | US2015188A | 1935-09-24 | MUHLFELD JOHN E |
| 182 | Convertible wagon | US58934232 | 1932-01-28 | US1935057A | 1933-11-14 | LORENZO NATALI NICOLAS |
| 183 | Dump car construction | US41003929 | 1929-11-27 | US1889169A | 1932-11-29 | ARGYLE CAMPBELL |
| 184 | Car construction | US40595929 | 1929-11-09 | US1855117A | 1932-04-19 | RABUCK JOHN A |
| 185 | Car construction | US39006729 | 1929-09-03 | US1853936A | 1932-04-12 | SMALL ARTHUR E |
| 186 | Railway dump car | US67205823 | 1923-11-01 | US1634107A | 1927-06-28 | HOSCEIT WILLIAM J; DAVID HINDAHL |
| 187 | Dump car | US62817723 | 1923-03-28 | US1565350A | 1925-12-15 | ZIMMER ALBERT E |
| 188 | Dump car of the convertible type | US60416022 | 1922-12-01 | US1515899A | 1924-11-18 | ZIMMER ALBERT E |
| 189 | Railway car | US49173321 | 1921-08-12 | US1515598A | 1924-11-18 | HOPKINS FRANK H |
| 190 | Car construction | US66992823 | 1923-10-22 | US1508549A | 1924-09-16 | HART HARRY S |
| 191 | Railway car | US57831222 | 1922-07-29 | US1486211A | 1924-03-11 | WINE WILLIAM E |
| 192 | Self-discharging wagon | US46469021 | 1921-04-26 | US1474703A | 1923-11-20 | KARL BARTH |
| 193 | Dump-car construction | US60604222 | 1922-12-11 | US1470980A | 1923-10-16 | HOSCEIT WILLIAM J; DAVID HINDAHL |
| 194 | Car construction | US59250122 | 1922-10-05 | US1468630A | 1923-09-25 | GALLAGHER FREDERICK S |
| 195 | Load-discharging car | US58543122 | 1922-08-31 | US1465756A | 1923-08-21 | ARGYLE CAMPBELL |
| 196 | A cobpoeatio | US1416711D | US1416711A | 1922-05-23 | ||
| 197 | Convertible car | US34868019 | 1919-12-31 | US1402422A | 1922-01-03 | DAVID HINDAHL |
| 198 | Dump-car | US25370418 | 1918-09-12 | US1398375A | 1921-11-29 | HART HARRY S |
| 199 | Convertible gondola ballast-car | US39220320 | 1920-06-28 | US1383287A | 1921-07-05 | ARGYLE CAMPBELL |
| 200 | Dump-car | US27833319 | 1919-02-21 | US1374567A | 1921-04-12 | DAVID HINDAHL |
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