序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
---|---|---|---|---|---|---|
281 | Electric cigarette lighter | US8268349 | 1949-03-21 | US2557225A | 1951-06-19 | HUTCHINSON ALTON E |
282 | Cigarette lighter | US319148 | 1948-01-20 | US2528500A | 1950-11-07 | DAVIS LINCOLN K |
283 | Converter system | US65373046 | 1946-03-12 | US2516889A | 1950-08-01 | LIBBY LESTER L |
284 | Frequency changing circuits particularly for the reception of ultrashort electromagnetic waves | US73960947 | 1947-04-05 | US2512614A | 1950-06-27 | WILLIAM EARP CHARLES |
285 | Cigar lighter | US73103447 | 1947-02-26 | US2505328A | 1950-04-25 | JACKSON ALFRED F |
286 | Electric lighter | US65435946 | 1946-03-14 | US2502135A | 1950-03-28 | ESKUCHEN FRANK G |
287 | Cigar lighter | US75588547 | 1947-06-20 | US2498116A | 1950-02-21 | JOHN SINKO |
288 | Thermostatic safety control system for gas burners | US52421244 | 1944-02-28 | US2479779A | 1949-08-23 | RAY WILLIAM A |
289 | Electric igniter | US57149745 | 1945-01-05 | US2396591A | 1946-03-12 | ALEX MELNICZAK |
290 | Cigarette or cigar lighter | US57908545 | 1945-02-21 | US2386168A | 1945-10-02 | PATTBERG THEODORE H |
291 | Electric cigar lighter | US40000441 | 1941-06-27 | US2338565A | 1944-01-04 | ASHTON PHILIP E; EDWARD FOWLER |
292 | Cigar lighter | US36071440 | 1940-10-11 | US2319687A | 1943-05-18 | JOHNSON ARTHUR A |
293 | Electric cigar lighter | US75208434 | 1934-11-08 | US2302775A | 1942-11-24 | JOHNSON ARTHUR A |
294 | Electric cigar lighter | US20189538 | 1938-04-14 | US2288806A | 1942-07-07 | JOHNSON ARTHUR A |
295 | Cigar lighter | US18823038 | 1938-02-02 | US2285904A | 1942-06-09 | COHEN JOSEPH H |
296 | Cigar lighter | US2276982D | US2276982A | 1942-03-17 | ||
297 | Cigar lighter | US20986338 | 1938-05-25 | US2276867A | 1942-03-17 | PISTEY GEORGE J |
298 | Cigar lighter | US29904639 | 1939-10-12 | US2275922A | 1942-03-10 | REYBURN JOHN R |
299 | Cigar lighter | US6737936 | 1936-03-05 | US2270564A | 1942-01-20 | SCHROEDER BERNARD A |
300 | Electric lighter for cigars, cigarettes, etc. | US10040636 | 1936-09-12 | US2269394A | 1942-01-06 | CUNO CHARLES H; WOLFSON SIDNEY L |