3860778

Information

• Patent Grant
• 3860778

• References
• Source

• Patent Number

  3,860,778

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1975
  51 years ago

• CPC

  • B23K13/043 - Seam welding
  • B23K11/11 - Spot welding
  • B23K13/00 - Welding by high-frequency current heating

• US Classifications

  • 219 - Electric heating