using magnets only for directly actuating of switches

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G01F23/546

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GPHYSICS G01Measuring instruments G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL METERING BY VOLUME G01F23/00Indicating or measuring liquid level, or level of fluent solid material

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G01F23/546using magnets only for directly actuating of switches

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for monitoring liquid level in a container
- Patent number 6,502,461
- Issue date Jan 7, 2003
- John M. Keller
- G01 - MEASURING TESTING
Information Patent Grant
Electronic float gauge
- Patent number 5,435,181
- Issue date Jul 25, 1995
- The Kelch Corporation
- Ronald E. Koebernik
- G01 - MEASURING TESTING
Information Patent Grant
Remote indicating liquid level sensor
- Patent number 5,410,913
- Issue date May 2, 1995
- Thomas G. Faria Corporation
- David A. Blackburn
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for monitoring liquid level in a container
- Publication number 20010032506
- Publication date Oct 25, 2001
- John M. Keller
- G01 - MEASURING TESTING