1821301

Information

• Patent Grant
• 1821301

• References
• Source

• Patent Number

  1,821,301

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

  • A61C13/1009 - Anchorage members
  • B23K3/063 - for wire feeding
  • Y10T29/49567 - Dental appliance making

• US Classifications

  • 433 - Dentistry
  • 029 - Metal working