2777229

Information

• Patent Grant
• 2777229

• References
• Source

• Patent Number

  2,777,229

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1957
  69 years ago

• CPC

  • G08B5/32 - with indicator element moving rectilinearly

• US Classifications

  • 040 - Card, picture, or sign exhibiting