3035143

Information

• Patent Grant
• 3035143

• References
• Source

• Patent Number

  3,035,143

• Date Filed

  Not available

• Date Issued

  Tuesday, May 15, 1962
  63 years ago

• CPC

  • A47G29/10 - Key holders Key boards
  • G01J5/52 - using comparison with reference sources
  • G05D23/1906 - using an analogue comparing device
  • G05D23/2456 - using selfs or transformers
  • G05D23/27 - with sensing element responsive to radiation

• US Classifications

  • 219 - Electric heating
  • 236 - Automatic temperature and humidity regulation