| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 141 | Relay construction | US65233546 | 1946-03-06 | US2550577A | 1951-04-24 | MCBERTY FRANK R |
| 142 | Magnetically operated switch | US59481945 | 1945-05-21 | US2506792A | 1950-05-09 | JUHASS JAMES G |
| 143 | Electrical circuit controlling device | US41733841 | 1941-10-31 | US2392810A | 1946-01-15 | CYPSER HUGO F |
| 144 | Circuit controller | US46720642 | 1942-11-28 | US2341901A | 1944-02-15 | LAWRENCE BUTLER WILLIAM; HAUSLER GEORGE M |
| 145 | Testing transmitter | US40109941 | 1941-07-05 | US2340539A | 1944-02-01 | KURT KOSCHMIEDER |
| 146 | Multicontact relay | US36733840 | 1940-11-27 | US2293823A | 1942-08-25 | HICKMAN CLARENCE N; EMORY LAKATOS |
| 147 | Magnetic contact alloy | US30849839 | 1939-12-09 | US2261553A | 1941-11-04 | EMORY LAKATOS |
| 148 | Relay | US30849739 | 1939-12-09 | US2212830A | 1940-08-27 | HICKMAN CLARENCE N; JACKSON HEIGHTS; EMORY LAKATOS |
| 149 | Relay | US27977128 | 1928-05-22 | US1902602A | 1933-03-21 | WILLIAMS HAROLD W; DANILO SANTINI |
| 150 | Unpolarized electromagnetic relay | US18122327 | 1927-04-05 | US1876295A | 1932-09-06 | ROLF HOFGAARD |
| 151 | Relay | US12866526 | 1926-08-11 | US1726164A | 1929-08-27 | QUEENEY FRANK E |
| 152 | Electromagnetic relay | US37923620 | 1920-05-06 | US1651684A | 1927-12-06 | JOHN ERICKSON |
| 153 | Relay | US61562523 | 1923-01-29 | US1589055A | 1926-06-15 | COUSINS ROBERT W |
| 154 | Relay | US29830519 | 1919-05-19 | US1437368A | 1922-11-28 | SLOUGH FRANK M |
| 155 | Switch | US1309822D | US1309822A | 1919-07-15 | ||
| 156 | Circuit-controller. | US12757116 | 1916-10-25 | US1272317A | 1918-07-09 | REED WALTER C |
| 157 | Electromagnet. | US12190516 | 1916-09-23 | US1226617A | 1917-05-15 | PARKER FREDERICK R |
| 158 | Relay. | US1908454025 | 1908-09-21 | US966764A | 1910-08-09 | POESER HERMANN |
| 159 | Automatic exchange-selector. | US1905282985 | 1905-10-16 | US820187A | 1906-05-08 | ENOCHS CLAUDE D |
| 160 | Improvement in electro-magnets for telegraphy | US133968D | US133968A | 1872-12-17 | ||
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