2557200

Information

• Patent Grant
• 2557200

• References
• Source

• Patent Number

  2,557,200

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1951
  73 years ago

• CPC

  • A44C7/008 - movable axially
  • Y10S411/979 - Resilient

• US Classifications

  • 063 - Jewelry
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • D11 - Jewelry, symbolic insignia, and ornaments