2415540

Information

• Patent Grant
• 2415540

• References
• Source

• Patent Number

  2,415,540

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1947
  78 years ago

• CPC

  • F16B21/205 - the connecting means having gripping edges in the form of a helix

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener