| Patents for G01F 23 - Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm (31,056) |
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| 06/15/1976 | US3964079 Brake fluid reservoir including fluid level indicator |
| 06/15/1976 | US3962919 Temperature compensated inductive liquid metal level detection system |
| 06/01/1976 | US3961230 Current relay actuated by multistage amplifier's total current drains |
| 06/01/1976 | US3960107 Expandable irrigation signal |
| 05/25/1976 | US3959647 Gamma-ray measuring method for determining an interface between media |
| 05/25/1976 | US3958527 Automatic product depletion indicator |
| 05/18/1976 | US3958239 Capacitive transistorized signaling device |
| 05/18/1976 | US3956937 Pressure sensing system |
| 05/18/1976 | US3956934 Liquid level indicator for pressurized liquid container |
| 05/11/1976 | US3956760 Liquid level gauge |
| 05/11/1976 | US3955416 Thermal liquid level detector |
| 05/04/1976 | US3954612 Septic tank system |
| 05/04/1976 | US3954351 Liquid level reservoir control |
| 05/04/1976 | US3954010 Visual and electronic battery hydrometer |
| 04/27/1976 | US3953845 Oil level indicator |
| 04/27/1976 | US3952593 Liquid level gauge |
| 04/13/1976 | US3950740 Sump water detector with isolated probe having ac applied to its electrodes |
| 04/13/1976 | US3950653 Instrument for sensing level of granular materials |
| 04/06/1976 | US3949360 Oil level detector and indicator |
| 04/06/1976 | US3948100 Probe for measuring the level of a liquid |
| 04/06/1976 | US3948088 Measuring apparatus |
| 03/30/1976 | US3947813 Master cylinder liquid level alarm |
| 03/30/1976 | US3947692 Digital transducers |
| 03/30/1976 | US3946901 Apparatus for controlling the level of a particulate pourable material in a defined space |
| 03/30/1976 | US3946625 Liquid detector |
| 03/23/1976 | US3946177 Liquid-level sensor utilizing ferromagnetic fluid |
| 03/16/1976 | US3944994 Liquid level sensor |
| 03/16/1976 | US3944844 Float operated electrical switch assembly |
| 03/16/1976 | US3943769 Electric conductive laminated vessel wall |
| 03/16/1976 | US3943767 Level detector system for cryogenic liquids |
| 03/09/1976 | US3942379 Floating wave stilling chamber for liquid level indicator |
| 03/02/1976 | US3942105 Non-contact inductive pickup for determining the interface between two media |
| 03/02/1976 | US3941956 Apparatus for indicating the filling level of silos and the like |
| 03/02/1976 | US3941078 Irrigation signalling device |
| 02/17/1976 | US3939471 Liquid level tamper alarm |
| 02/17/1976 | US3939470 Liquid level detecting and indicating system for vehicle |
| 02/17/1976 | US3939383 Liquid level monitoring device |
| 02/17/1976 | US3939360 Liquid level sensor and electrode assembly therefor |
| 02/17/1976 | US3938376 Volume signal generator for thermodynamic cycle analyzers |
| 02/17/1976 | US3938347 Level control apparatus and method for cryogenic liquids |
| 02/10/1976 | US3938117 Critical liquid-level warning circuit |
| 02/10/1976 | US3937084 Liquid level indicator |
| 02/10/1976 | US3937083 Temperature-compensating liquid meter |
| 02/03/1976 | US3935970 Automatic level measuring and control system for dispensing bin |
| 02/03/1976 | US3935835 Apparatus for checking the level of liquid in containers |
| 02/03/1976 | US3935741 Level sensor |
| 02/03/1976 | US3935740 Liquid level probe |
| 02/03/1976 | US3935739 Liquid level gauging apparatus |
| 02/03/1976 | US3935738 Liquid level detecting devices |
| 01/27/1976 | US3934475 Capacitance type material level detector for hoppers |
| 01/27/1976 | US3934474 Holding and monitoring apparatus for intravenous infusion container |
| 01/20/1976 | US3934103 Liquid level sensing switch |
| 01/20/1976 | US3933042 Water level gauge |
| 01/20/1976 | US3933041 Bulk material level measuring system |
| 01/13/1976 | US3932852 Liquid level detection systems |
| 01/06/1976 | US3931485 Fluid level float switch with sealing diaphragm |