2053918

Information

• Patent Grant
• 2053918

• References
• Source

• Patent Number

  2,053,918

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1936
  88 years ago

• CPC

  • F28F11/04 - using pairs of obturating elements

• US Classifications

  • 138 - Pipes and tubular conduits
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 470 - Threaded, headed fastener, or washer making: process and apparatus