3582186

Information

• Patent Grant
• 3582186

• References
• Source

• Patent Number

  3,582,186

• Date Filed

  Not available

• Date Issued

  Tuesday, June 1, 1971
  53 years ago

• CPC

  • B60R1/089 - using a liquid filtering layer of variable thickness
  • G02B5/005 - Diaphragms
  • G02B26/0825 - the reflecting element being a flexible sheet or membrane

• US Classifications

  • 359 - Optical: systems and elements