TREA

recording element actuated only upon change in value of variable

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Industry

  • CPC
  • G01D9/18
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Parent Industries

GPHYSICS G01Measuring instruments G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS TARIFF METERING APPARATUS MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR G01D9/00Recording measured values

Current Industry

G01D9/18recording element actuated only upon change in value of variable
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Analog and digital recording apparatus
    • Patent number 3,949,402
    • Issue date Apr 6, 1976
    • Honeywell Inc.
    • Thomas P. Kelley
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3059235
    • Patent number 3,059,235
    • Issue date Oct 16, 1962
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents