Resources Contact Us Home
Browse by Category: Main > Communications
Class Information
Number: 367/114
Name: Communications, electrical: acoustic wave systems and devices > Echo systems > Distance or direction finding > With indicator > Meter
Description: Subject matter in which the display device is a meter of the moving coil type having a coil which pivots between permanent magnets, e.g., a volt meter or ammeter.

Patents under this class:

Patent Number Title Of Patent Date Issued
4420727 Self oscillating acoustic displacement detector Dec. 13, 1983
4323992 Depth sounder repeater structure and method Apr. 6, 1982
4285053 Acoustic method and apparatus for measuring micron and submicron distances Aug. 18, 1981
4221004 Adjustable ultrasonic level measurement device Sep. 2, 1980
4210970 Echo sounders Jul. 1, 1980
4175441 Gauge for measuring distance to planar surfaces and thicknesses of planar members Nov. 27, 1979
4068207 Acoustic log Jan. 10, 1978
3991398 Acoustic log Nov. 9, 1976
3976969 Underwater sound wave direction finding system Aug. 24, 1976
3934219 Acoustic method and apparatus for determining effectiveness of mine passage seal Jan. 20, 1976

  Recently Added Patents
Mobile communication terminal provided with handsfree function and controlling method thereof
Discharge lamp lighting circuit
Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels
Storage device, data processing device, registration method, and recording medium
Methods, devices and software applications for facilitating a development of a computer program
Reduction of HMF ethers with metal catalyst
Implantable device
  Randomly Featured Patents
Separator for sealed lead-acid battery
Towel dispenser
Device to cut and deburr metal and method of use thereof
Method and an apparatus for steering an aerodynamic body having a homing device
Golf club cover retaining device
Virtual machine
ECL-TTL level converting circuit
Selective thrombin inhibitors
Rock crusher
Rose plant named `Evera 121`