2616778

Information

• Patent Grant
• 2616778

• References
• Source

• Patent Number

  2,616,778

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1952
  72 years ago

• CPC

  • G07C3/06 - in graphical form
  • Y10T70/8216 - Tampering detector

• US Classifications

  • 346 - Recorders
  • 070 - Locks