1777933

Information

• Patent Grant
• 1777933

• References
• Source

• Patent Number

  1,777,933

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1930
  94 years ago

• CPC

  • G09F7/22 - for rotatably or swingably mounting
  • G09F2017/0016 - using ventilators

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 116 - Signals and indicators