1886745

Information

• Patent Grant
• 1886745

• References
• Source

• Patent Number

  1,886,745

• Date Filed

  Not available

• Date Issued

  Tuesday, November 8, 1932
  92 years ago

• CPC

  • E21D11/05 - using compressible insertions
  • E21D5/04 - with brick, concrete, stone, or similar building materials

• US Classifications

  • 405 - Hydraulic and earth engineering