1175770

Information

• Patent Grant
• 1175770

• References
• Source

• Patent Number

  1,175,770

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1916
  108 years ago

• CPC

  • E04C2/34 - composed of two or more spaced sheet-like parts
  • D21C7/04 - Linings

• US Classifications

  • 052 - Static structures
  • 138 - Pipes and tubular conduits