1444381

Information

• Patent Grant
• 1444381

• References
• Source

• Patent Number

  1,444,381

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1923
  101 years ago

• CPC

  • G06G1/0047 - for printing
  • Y10T70/7424 - Tampering prevention or attach defeating

• US Classifications

  • 235 - Registers
  • 070 - Locks
  • 116 - Signals and indicators