251974

Information

• Patent Grant
• 251974

• References
• Source

• Patent Number

  251,974

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1882
  143 years ago

• CPC

  • E04F21/16 - Implements for after-treatment of plaster or the like before it has hardened or dried
  • E04F2019/0418 - of stone or stone like material

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning