| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Car-dumper control | US16003827 | 1927-01-10 | US1774129A | 1930-08-26 | CASE ARTHUR F |
| 202 | Rotary car dumper | US70458224 | 1924-04-07 | US1770275A | 1930-07-08 | KIDDER ELWIN H |
| 203 | Car dump | US16477127 | 1927-01-31 | US1768847A | 1930-07-01 | KIDDER BLWIN H |
| 204 | Pivoted external counterweight | US17259627 | 1927-03-04 | US1768825A | 1930-07-01 | CALDWELL FRANK B |
| 205 | Car hoisting and dumping apparatus | US74841824 | 1924-11-07 | US1767768A | 1930-06-24 | MCLAUTHLIN MARTIN B |
| 206 | Unloading device | US30351928 | 1928-09-01 | US1767013A | 1930-06-24 | POWER HENRY L |
| 207 | Discharging means for open railway wagons | US28059828 | 1928-05-25 | US1763545A | 1930-06-10 | GUSTAW WILLIMEK; WLADYSLAW SKARBEK-KOZIETULSKI |
| 208 | Grain-spout holder | US31218928 | 1928-10-12 | US1759858A | 1930-05-27 | WILLIAM KUTZ |
| 209 | Portable stack lifter | US19935527 | 1927-06-16 | US1745051A | 1930-01-28 | WARREN JAY F |
| 210 | Portable stack lifter | US17211827 | 1927-03-02 | US1745049A | 1930-01-28 | SYSTROM ERNEST W |
| 211 | Car-loading apparatus | US16537827 | 1927-02-02 | US1745047A | 1930-01-28 | ROMINE ROBERT T |
| 212 | Car dumper | US8715026 | 1926-02-09 | US1707984A | 1929-04-09 | KALTENBACH ROBERT W |
| 213 | Coal conveyer | US18685827 | 1927-04-27 | US1701733A | 1929-02-12 | SHAW ARTHUR L |
| 214 | Automatic feeder | US57459322 | 1922-07-12 | US1684675A | 1928-09-18 | LEMMON ALEXIS W |
| 215 | Loader | US6951525 | 1925-11-16 | US1683646A | 1928-09-11 | BARRY DONALD S |
| 216 | Loading device | US13848226 | 1926-09-29 | US1668500A | 1928-05-01 | GILLESPIE GUS H |
| 217 | Car dumper | US9757226 | 1926-03-26 | US1654919A | 1928-01-03 | CASE ARTHUR F |
| 218 | Elevating device | US11090926 | 1926-05-22 | US1646759A | 1927-10-25 | GEORGE MCCALL |
| 219 | Unloading apparatus for railway cars | US14324626 | 1926-10-21 | US1628732A | 1927-05-17 | GILBERT MITCHELL FREDERICK |
| 220 | Combination truck and wagon dump | US6985425 | 1925-11-18 | US1621779A | 1927-03-22 | HARSHBARGER FRANZ S |
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