3233515

Information

• Patent Grant
• 3233515

• References
• Source

• Patent Number

  3,233,515

• Date Filed

  Not available

• Date Issued

  Tuesday, February 8, 1966
  58 years ago

• CPC

  • B60R1/089 - using a liquid filtering layer of variable thickness

• US Classifications

  • 359 - Optical: systems and elements