2506134

Information

• Patent Grant
• 2506134

• References
• Source

• Patent Number

  2,506,134

• Date Filed

  Not available

• Date Issued

  Tuesday, May 2, 1950
  74 years ago

• CPC

  • G04B45/0007 - Light-, colour-, line-, or spot-effects caused by parts or pictures moved by the clockwork
  • G04B45/04 - Time pieces with invisible drive
  • G09F23/16 - on clocks

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 359 - Optical: systems and elements
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology