1356755

Information

• Patent Grant
• 1356755

• References
• Source

• Patent Number

  1,356,755

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1920
  103 years ago

• CPC

  • A61C1/04 - with treadle or manual drive

• US Classifications

  • 433 - Dentistry
  • 185 - Motors: spring, weight, or animal powered