1822400

Information

• Patent Grant
• 1822400

• References
• Source

• Patent Number

  1,822,400

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1931
  95 years ago

• CPC

  • B21D53/00 - Making other particular articles
  • E21B31/00 - Fishing for or freeing objects in boreholes or wells
  • Y10T29/49933 - After thinning
  • Y10T403/478 - Metallic fusion material

• US Classifications

  • 403 - Joints and connections
  • 029 - Metal working
  • 076 - Metal tools and implements, making
  • 228 - Metal fusion bonding