1658659

Information

• Patent Grant
• 1658659

• References
• Source

• Patent Number

  1,658,659

• Date Filed

  Not available

• Date Issued

  Tuesday, February 7, 1928
  97 years ago

• CPC

  • H01K1/12 - Bodies which are non-conductive when cold

• US Classifications

  • 204 - Chemistry: electrical and wave energy
  • 219 - Electric heating
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 501 - Compositions: ceramic