专利检索_ .通过浮标专利检索_ .通过浮标专利检索查询

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
261	U-tube manometer	US53557155	1955-09-21	US2836067A	1958-05-27	QUIST HAROLD A

262	Apparatus responsive to variations in the differential between the levels of two liquid bodies	US25205751	1951-10-19	US2802363A	1957-08-13	YVES PONSAR

263	Liquid level measuring apparatus	US15525750	1950-04-11	US2714167A	1955-07-26	GERHARD HERZOG

264	Brake lever actuated oil level indicator	US22816751	1951-05-25	US2626386A	1953-01-20	RABY JAMES O

265	Apparatus for liquid level indicators	US11856136	1936-12-31	US2147270A	1939-02-14	SCHROEDER CARL J

266	Liquid measuring apparatus	US1662535	1935-04-16	US2069279A	1937-02-02	DAVID SAMIRAN

267	Indicator	US25953428	1928-03-06	US1710872A	1929-04-30	GROVES JOHN F

268	Liquid-level indicator	US66767223	1923-10-10	US1663041A	1928-03-20	DUNBAUGH JR GEORGE J

269	Indicator with mechanical transmission to a distance	US49303221	1921-09-02	US1471831A	1923-10-23	MAURICE CORSET LUCIEN ALFRED

270	Water-level indicator and alarm	US1318213D		US1318213A	1919-10-07

271	Level-indicator and signal.	US18873217	1917-08-29	US1280015A	1918-09-24	GOODWIN REUBEN A

272	Water-gage.	US1913746159	1913-02-04	US1138285A	1915-05-04	GREEN WILLIAM F

273	Water-gage.	US1909475055	1909-01-29	US939763A	1909-11-09	VAAGE HENRIX BANSEN

274	High or low water alarm.	US1902125190	1902-09-29	US745317A	1903-12-01	BLAKE RICHARD C

275	Water-gage	US374606D		US374606A	1887-12-13

276	Automatic boiler gage and alarm	US358289D		US358289A	1887-02-22

277	Water-indicator for steam-boilers	US335139D		US335139A	1886-02-02

278	potties	US258113D		US258113A	1882-05-16

279	Low-water gage and alarm	US226171D		US226171A	1880-04-06

280	Improvement in high and low water indicators for steam-boilers	US199598D		US199598A	1878-01-22

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