3511972

Information

• Patent Grant
• 3511972

• References
• Source

• Patent Number

  3,511,972

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1970
  54 years ago

• CPC

  • G05D23/27539 - using conductible expansible fluid
  • G05D23/1931 - to control the temperature of one space

• US Classifications

  • 219 - Electric heating