481164

Information

• Patent Grant
• 481164

• References
• Source

• Patent Number

  481,164

• Date Filed

  Not available

• Date Issued

  Tuesday, August 23, 1892
  131 years ago

• CPC

  • A61C1/04 - with treadle or manual drive

• US Classifications

  • 433 - Dentistry
  • 476 - Friction gear transmission systems or components