2267817

Information

• Patent Grant
• 2267817

• References
• Source

• Patent Number

  2,267,817

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1941
  83 years ago

• CPC

  • F16L41/028 - of concrete, cement or asbestos-cement
  • Y10T156/103 - Encasing or enveloping the configured lamina

• US Classifications

  • 162 - Paper making and fiber liberation
  • 156 - Adhesive bonding and miscellaneous chemical manufacture