3806904

Information

• Patent Grant
• 3806904

• References
• Source

• Patent Number

  3,806,904

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1974
  50 years ago

• CPC

  • G06M1/276 - using mechanically-actuated contacts
  • G01F15/063 - using electrical means

• US Classifications

  • 340 - Communications: electrical