| 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 | Manufacture of flexible shafting | US55834031 | 1931-08-20 | US2002479A | 1935-05-21 | ANGELL ROBERT C; WADSWORTH FRANK L O |
| 242 | Winding implement | US38916829 | 1929-08-29 | US1838874A | 1931-12-29 | JOHN SERRES |
| 243 | Machine for applying reenforcing wire to clothespins | US36038029 | 1929-05-04 | US1799698A | 1931-04-07 | NOLAN JOHN R |
| 244 | Machine for applying reenforcements to clothespins | US32553028 | 1928-12-12 | US1753916A | 1930-04-08 | SIGMUND BOWER |
| 245 | Machine for forming reenforcement supports | US19259527 | 1927-05-19 | US1683610A | 1928-09-11 | EICKHOFF THEODORE H |
| 246 | Method of and apparatus for spirally winding wire on tubes | US8749226 | 1926-02-11 | US1645803A | 1927-10-18 | DAVIS LEWIS F |
| 247 | Method of and machine for the internal winding of wire | US55904422 | 1922-05-06 | US1541189A | 1925-06-09 | SICKLES FRANK W |
| 248 | Paper-machine | US748973D | US748973A | 1904-01-05 | ||
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