3509310

Information

• Patent Grant
• 3509310

• References
• Source

• Patent Number

  3,509,310

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1970
  54 years ago

• CPC

  • B23K11/043 - characterised by the electric circuits used therewith

• US Classifications

  • 219 - Electric heating