3500444

Information

• Patent Grant
• 3500444

• References
• Source

• Patent Number

  3,500,444

• Date Filed

  Not available

• Date Issued

  Tuesday, March 10, 1970
  54 years ago

• CPC

  • H05B3/688 - Fabrication of the plates
  • B28B23/00 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
  • F28F21/045 - for domestic or space-heating systems
  • H05B3/22 - non-flexible

• US Classifications

  • 219 - Electric heating
  • 338 - Electrical resistors
  • 392 - Electric resistance heating devices