3663309

Information

• Patent Grant
• 3663309

• References
• Source

• Patent Number

  3,663,309

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • F23D14/54 - for cutting or welding metal
  • B23K7/00 - Cutting, scarfing, or desurfacing by applying flames
  • B23K7/001 - for profiling plate edges or for cutting grooves

• US Classifications

  • 148 - Metal treatment