1854815

Information

• Patent Grant
• 1854815

• References
• Source

• Patent Number

  1,854,815

• Date Filed

  Not available

• Date Issued

  Tuesday, April 19, 1932
  93 years ago

• CPC

  • F16L9/01 - of wood

• US Classifications

  • 138 - Pipes and tubular conduits
  • 405 - Hydraulic and earth engineering