3624317

Information

• Patent Grant
• 3624317

• References
• Source

• Patent Number

  3,624,317

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1971
  54 years ago

• CPC

  • H04M1/667 - Preventing unauthorised calls from a telephone set
  • Y10S70/57 - Screw guard
  • Y10S70/72 - Telephone lock
  • Y10T70/40 - Portable
  • Y10T70/411 - Clamps
  • Y10T70/50 - Special application

• US Classifications

  • 379 - Telephonic communications
  • 070 - Locks