| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Rotary fluid control valve | US16550050 | 1950-06-01 | US2749941A | 1956-06-12 | GARDNER EVELYN M |
| 162 | Plug-type valve | US79313847 | 1947-12-22 | US2621012A | 1952-12-09 | GRAHAM CLIFFORD P |
| 163 | Balanced valve | US9519749 | 1949-05-25 | US2545220A | 1951-03-13 | WOLCOTT JR SAMUEL K |
| 164 | Selector, control valve, and the like | US46358342 | 1942-10-28 | US2384318A | 1945-09-04 | LE BLEU CHARLES |
| 165 | Valve | US39191541 | 1941-05-05 | US2313257A | 1943-03-09 | NELSON KARL O |
| 166 | Balanced plug valve | US7784236 | 1936-05-04 | US2239795A | 1941-04-29 | PARKER ARTHUR L |
| 167 | Valve | US22078538 | 1938-07-22 | US2229933A | 1941-01-28 | PARKER ARTHUR L |
| 168 | Valve | US22078438 | 1938-07-22 | US2229932A | 1941-01-28 | PARKER ARTHUR L |
| 169 | Balanced, plug-type, throttle valve | US65208233 | 1933-01-16 | US1970888A | 1934-08-21 | FRANK HENNEBOHLE |
| 170 | Fluid valve | US28935728 | 1928-06-30 | US1796808A | 1931-03-17 | ROBERTS SAMUEL S |
| 171 | Valve mechanism | US11097926 | 1926-05-22 | US1754424A | 1930-04-15 | GOLDBERG DAVID D |
| 172 | Throttle valve | US65035223 | 1923-07-09 | US1571992A | 1926-02-09 | BAYLES LEWIS C |
| 173 | Rotary valve for pipe lines | US70033424 | 1924-03-19 | US1512684A | 1924-10-21 | ANTON GAGG |
| 174 | Valve | US50650521 | 1921-10-08 | US1507828A | 1924-09-09 | HARPER PHILIP S |
| 175 | Valve device | US30901419 | 1919-07-07 | US1342900A | 1920-06-08 | JAMES MCGILLIVRAY |
| 176 | Hydraulic, steam, or air valve. | US14419817 | 1917-01-24 | US1252490A | 1918-01-08 | PERIS NICHOLAS U |
| 177 | Valve. | US3752515 | 1915-07-01 | US1166300A | 1915-12-28 | YERGENS WILLIAM F |
| 178 | Valve for corliss engines and the like. | US1911613138 | 1911-03-08 | US1072308A | 1913-09-02 | BURTON CHARLES G |
| 179 | Valve device. | US1903148221 | 1903-03-17 | US743356A | 1903-11-03 | WATTERS CHARLES H |
| 180 | Adolph weber | US477720D | US477720A | 1892-06-28 | ||
QQ群二维码
意见反馈
意见反馈