1652897

Information

• Patent Grant
• 1652897

• References
• Source

• Patent Number

  1,652,897

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1927
  97 years ago

• CPC

  • E05B37/0003 - preventing detection of the combination
  • Y10T70/7407 - Operating indicators
  • Y10T70/7435 - Hidden or covered dial
  • Y10T70/8649 - Keyhole covers

• US Classifications

  • 070 - Locks