2907939

Information

• Patent Grant
• 2907939

• References
• Source

• Patent Number

  2,907,939

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1959
  65 years ago

• CPC

  • G05D3/124 - with modulation

• US Classifications

  • 318 - Electricity: motive power systems
  • 033 - Geometrical instruments
  • 324 - Electricity: measuring and testing