2248671

Information

• Patent Grant
• 2248671

• References
• Source

• Patent Number

  2,248,671

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1941
  83 years ago

• CPC

  • E04F13/0828 - engaging the outer surface of the covering elements
  • E04F13/0814 - fixed by means of clamping action

• US Classifications

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