2194227

Information

• Patent Grant
• 2194227

• References
• Source

• Patent Number

  2,194,227

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1940
  85 years ago

• CPC

  • G07D7/128 - Viewing devices
  • G02B25/002 - Magnifying glasses
  • G07D7/12 - Visible light, infra-red or ultra violet radiation
  • G07D7/121 - Illumination assembly details
  • G07F9/003 - displaying the inserted coins
  • G07G1/0018 - Constructional details

• US Classifications

  • 359 - Optical: systems and elements