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Your search returned 98 patents.
( 340/622 in Current US Classification ) |
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| 1 |
| Patent ID | Title | Date Filed |
| 4116045 | Oil detector
| December 20, 1976 |
| 4075890 | Device for detecting level of molten metal surface within a continuous casting mold
| December 2, 1976 |
| 4065760 | Liquid level sensor
| March 4, 1977 |
| 4053874 | Apparatus for monitoring the liquid level in a tank
| February 26, 1976 |
| 4037427 | Refrigeration evaporators with ice detectors
| August 26, 1974 |
| 4003038 | Thermal discriminator for sensing variations in the heat exchange properties of a medium
| June 9, 1975 |
| 4001802 | Solid state thermistor switch
| August 4, 1975 |
| 3993983 | Apparatus for sensing variations in the heat exchange properties of a medium
| June 9, 1975 |
| 3992668 | Electro-thermal readout of coulometers
| July 9, 1975 |
| 3992667 | Electro-thermal readout coulometer
| January 3, 1975 |
| 3955416 | Thermal liquid level detector
| January 30, 1975 |
| 3939470 | Liquid level detecting and indicating system for vehicle
| February 5, 1974 |
| 3938347 | Level control apparatus and method for cryogenic liquids
| April 12, 1974 |
| 3935738 | Liquid level detecting devices
| January 14, 1974 |
| 3922658 | Fluid level monitor
| December 4, 1974 |
| 3903495 | Liquid level indicating system
| April 22, 1974 |
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