3819902

Information

• Patent Grant
• 3819902

• References
• Source

• Patent Number

  3,819,902

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  51 years ago

• CPC

  • B23K9/127 - Means for tracking lines during arc welding or cutting
  • B23Q35/127 - using non-mechanical sensing

• US Classifications

  • 219 - Electric heating
  • 228 - Metal fusion bonding
  • 318 - Electricity: motive power systems
  • 901 - Robots