3501909

Information

• Patent Grant
• 3501909

• References
• Source

• Patent Number

  3,501,909

• Date Filed

  Not available

• Date Issued

  Tuesday, March 24, 1970
  54 years ago

• CPC

  • G04F3/027 - using electrical contacts

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology