3567312

Information

• Patent Grant
• 3567312

• References
• Source

• Patent Number

  3,567,312

• Date Filed

  Not available

• Date Issued

  Tuesday, March 2, 1971
  53 years ago

• CPC

  • G02B1/06 - made of fluids in transparent cells
  • B60R1/089 - using a liquid filtering layer of variable thickness

• US Classifications

  • 359 - Optical: systems and elements