1833411

Information

• Patent Grant
• 1833411

• References
• Source

• Patent Number

  1,833,411

• Date Filed

  Not available

• Date Issued

  Tuesday, November 24, 1931
  93 years ago

• CPC

  • B21D33/00 - Special measures in connection with working metal foils
  • A61C13/06 - made by punching
  • B21D31/06 - Deforming sheet metal, tubes or profiles by sequential impacts
  • Y10T29/49567 - Dental appliance making

• US Classifications

  • 029 - Metal working
  • 433 - Dentistry