822201

Information

• Patent Grant
• 822201

• References
• Source

• Patent Number

  822,201

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1906
  118 years ago

• CPC

  • G02F1/1335 - Structural association of optical devices
  • G01C3/24 - using a parallactic triangle with fixed angles and a base of variable length in the observation station

• US Classifications

  • 356 - Optics: measuring and testing