837981

Information

• Patent Grant
• 837981

• References
• Source

• Patent Number

  837,981

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1906
  118 years ago

• CPC

  • E04F21/1655 - for finishing corner joints
  • E04F2019/0418 - of stone or stone like material

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning