1758922

Information

• Patent Grant
• 1758922

• References
• Source

• Patent Number

  1,758,922

• Date Filed

  Not available

• Date Issued

  Tuesday, May 20, 1930
  94 years ago

• CPC

  • H05B1/0222 - actuated by changing weight, level or centre of gravity

• US Classifications

  • 392 - Electric resistance heating devices