1920489

Information

• Patent Grant
• 1920489

• References
• Source

• Patent Number

  1,920,489

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1933
  91 years ago

• CPC

  • E05B37/10 - in padlocks
  • Y10S70/44 - Combination changers
  • Y10T70/424 - Sliding
  • Y10T70/7282 - Pin or rod and slot
  • Y10T70/7367 - Tumbler structure and position
  • Y10T70/7395 - Friction holder
  • Y10T70/7407 - Operating indicators
  • Y10T70/7435 - Hidden or covered dial

• US Classifications

  • 070 - Locks