2879686

Information

• Patent Grant
• 2879686

• References
• Source

• Patent Number

  2,879,686

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1959
  65 years ago

• CPC

  • E21D21/0093 - Accessories
  • G01B5/30 - for measuring the deformation in a solid
  • Y10S116/34 - Tension indicating
  • Y10S116/35 - Electroluminescent dials

• US Classifications

  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 116 - Signals and indicators
  • 405 - Hydraulic and earth engineering