2153779

Information

• Patent Grant
• 2153779

• References
• Source

• Patent Number

  2,153,779

• Date Filed

  Not available

• Date Issued

  Tuesday, April 11, 1939
  85 years ago

• CPC

  • D06B3/16 - in superimposed
  • 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
  • H03J7/042 - with reactance tube
  • D06B2700/095 - for continuous treatment of open width fabrics, in which the fabric is guided without tension

• US Classifications

  • 455 - Telecommunications
  • 331 - Oscillators
  • 334 - Tuners