1647359

Information

• Patent Grant
• 1647359

• References
• Source

• Patent Number

  1,647,359

• Date Filed

  Not available

• Date Issued

  Tuesday, November 1, 1927
  97 years ago

• CPC

  • G05D23/015 - with mechanical sensing element not covered by groups G05D23/02 and G05D23/12

• US Classifications

  • 236 - Automatic temperature and humidity regulation