2580485

Information

• Patent Grant
• 2580485

• References
• Source

• Patent Number

  2,580,485

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1952
  73 years ago

• CPC

  • F42B19/36 - adapted to be used for exercise purposes

• US Classifications

  • 396 - Photography
  • 033 - Geometrical instruments
  • 346 - Recorders
  • 352 - Optics: motion pictures