1722631

Information

• Patent Grant
• 1722631

• References
• Source

• Patent Number

  1,722,631

• Date Filed

  Not available

• Date Issued

  Tuesday, July 30, 1929
  95 years ago

• CPC

  • H03J1/16 - Single control means independently performing two or more functions

• US Classifications

  • 455 - Telecommunications