3903389

Information

• Patent Grant
• 3903389

• References
• Source

• Patent Number

  3,903,389

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1975
  49 years ago

• CPC

  • H03M11/22 - Static coding
  • H01H29/18 - with level of surface of contact liquid displaced by non-electrical contact-making plunger
  • H01H41/08 - keyboard operated

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 341 - Coded data generation or conversion