1693630

Information

• Patent Grant
• 1693630

• References
• Source

• Patent Number

  1,693,630

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1928
  96 years ago

• CPC

  • B29D23/001 - Pipes; Pipe joints
  • B29C53/14 - Twisting
  • B31F1/0067 - using only external forming surfaces
  • B31F1/007 - for making articles with multilayered walls
  • F16L9/17 - obtained by bending a sheet longitudinally and connecting the edges
  • H02G3/0481 - with a circular cross-section
  • B29K2105/0827 - Braided fabrics
  • B29K2995/0069 - non-permeable

• US Classifications

  • 138 - Pipes and tubular conduits
  • 156 - Adhesive bonding and miscellaneous chemical manufacture