3518407

Information

• Patent Grant
• 3518407

• References
• Source

• Patent Number

  3,518,407

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1970
  54 years ago

• CPC

  • H01C7/022 - mainly consisting of non-metallic substances
  • B23K3/0353 - Heating elements or heating element housings
  • H05B3/30 - on or between metallic plates

• US Classifications

  • 219 - Electric heating
  • 228 - Metal fusion bonding