1820925

Information

• Patent Grant
• 1820925

• References
• Source

• Patent Number

  1,820,925

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

  • G09F7/18 - Means for attaching signs, plates, panels, or boards to a supporting structure
  • G09F2007/1869 - plates fixed to instruments
  • Y10T24/45099 - Resilient element [e.g., snap type]

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 024 - Buckles, buttons, clasps, etc.
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener