1642173

Information

• Patent Grant
• 1642173

• References
• Source

• Patent Number

  1,642,173

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1927
  97 years ago

• CPC

  • H03J7/14 - Controlling the magnetic state of inductor cores
  • H03J7/04 - where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

• US Classifications

  • 375 - Pulse or digital communications
  • 334 - Tuners