3908901

Information

• Patent Grant
• 3908901

• References
• Source

• Patent Number

  3,908,901

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1975
  50 years ago

• CPC

  • E04D13/103 - De-icing devices or snow melters
  • E04D11/02 - Build-up roofs
  • E04D13/1612 - the roof structure comprising a supporting framework of roof purlins or rafters

• US Classifications

  • 237 - Heating systems
  • 052 - Static structures
  • 165 - Heat exchange