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 |
|---|---|---|---|---|---|---|
| 241 | Nut-shell remover | US23661927 | 1927-11-30 | US1728194A | 1929-09-17 | WOODSON ROBERT E |
| 242 | Nut-cracking machine | US24125727 | 1927-12-19 | US1713600A | 1929-05-21 | GUIDARELLI BENJAMIN J |
| 243 | Nut-cracking machine | US19442627 | 1927-05-26 | US1695651A | 1928-12-18 | NOETH GRADICK WILEY |
| 244 | Nut-cracking machine | US14177526 | 1926-10-15 | US1654430A | 1927-12-27 | PICKENS JOHN L |
| 245 | Nut-cracking machine | US65541523 | 1923-08-03 | US1501259A | 1924-07-15 | WOODSON ROBERT E |
| 246 | Nut cracker, sheller, and separator | US55783322 | 1922-05-02 | US1459609A | 1923-06-19 | AUSTIN JOHN H |
| 247 | Nut-cracking machine | US33942919 | 1919-11-20 | US1455449A | 1923-05-15 | RIDDLE MAXWELL F |
| 248 | Feeding mechanism for nut-cracking machines | US43159720 | 1920-12-18 | US1440744A | 1923-01-02 | EMIL PHILLIPPE |
| 249 | Apparatus for deshelling seeds having hard shells | US42095720 | 1920-11-01 | US1411177A | 1922-03-28 | GEORGE MITCHELL |
| 250 | Nut-handling machine | US42361720 | 1920-11-12 | US1410122A | 1922-03-21 | REDWINE REX F |
| 251 | Nut-cracking machine | US46858121 | 1921-05-11 | US1408697A | 1922-03-07 | EATON CHARLES B |
| 252 | Nut shelling and separating machine. | US18737717 | 1917-08-21 | US1266075A | 1918-05-14 | SPITZ FANNIE S |
| 253 | Automatic nut-cracking machine. | US19214617 | 1917-09-19 | US1265350A | 1918-05-07 | MCFARLAND CHARLEY W; GRIFFIN GEORGE N |
| 254 | Peanut-sheller. | US19454317 | 1917-10-03 | US1258125A | 1918-03-05 | LAMBETH WILLIAM C |
| 255 | Nut-shelling machine. | US1914878760 | 1914-12-23 | US1257306A | 1918-02-26 | BLATT ALFRED W |
| 256 | Nut-cracking machine. | US9534916 | 1916-05-04 | US1230679A | 1917-06-19 | CRAWFORD HENRY D |
| 257 | Nut shelling and separating machine. | US12227016 | 1916-09-26 | US1211978A | 1917-01-09 | SPITZ FANNIE S |
| 258 | Nutcracker. | US4816015 | 1915-08-31 | US1202830A | 1916-10-31 | GOLDSMITH ALFRED |
| 259 | Nut-cracking machine. | US1912728430 | 1912-10-29 | US1133121A | 1915-03-23 | GEBHARDT WILLIAM |
| 260 | Pea-sheller. | US1914811827 | 1914-01-13 | US1116948A | 1914-11-10 | STEWART ERIN MADELINE |
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