3603672

Information

• Patent Grant
• 3603672

• References
• Source

• Patent Number

  3,603,672

• Date Filed

  Not available

• Date Issued

  Tuesday, September 7, 1971
  53 years ago

• CPC

  • B60R1/084 - using a removable filtering or hiding screen
  • G02B5/205 - Neutral density filters

• US Classifications

  • 359 - Optical: systems and elements
  • 296 - Land vehicles: bodies and tops
  • 351 - Optics: eye examining, vision testing and correcting