3275040

Information

• Patent Grant
• 3275040

• References
• Source

• Patent Number

  3,275,040

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1966
  58 years ago

• CPC

  • B28B21/60 - prestressed reinforcements
  • F16L41/002 - of concrete, cement or asbestos-cement
  • Y10T29/49861 - Sizing mating parts during final positional association

• US Classifications

  • 138 - Pipes and tubular conduits
  • 029 - Metal working
  • 285 - Pipe joints or couplings