1351895

Information

• Patent Grant
• 1351895

• References
• Source

• Patent Number

  1,351,895

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1920
  104 years ago

• CPC

  • B28B21/70 - by building-up from preformed elements

• US Classifications

  • 285 - Pipe joints or couplings
  • 052 - Static structures
  • 138 - Pipes and tubular conduits
  • 405 - Hydraulic and earth engineering