3867630

Information

• Patent Grant
• 3867630

• References
• Source

• Patent Number

  3,867,630

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1975
  50 years ago

• CPC

  • B63B59/04 - Preventing hull fouling
  • G01N21/15 - Preventing contamination of the components of the optical system or obstruction of the light path
  • G01N27/025 - a current being generated within the material by induction
  • G01P5/04 - using deflection of baffle-plates
  • G01P13/02 - Indicating direction only
  • G02B27/0006 - with means to keep optical surfaces clean
  • Y10S33/03 - Photoelectric
  • Y10T428/24926 - including ceramic, glass, porcelain or quartz layer

• US Classifications

  • 250 - Radiant energy
  • 033 - Geometrical instruments
  • 073 - Measuring and testing
  • 359 - Optical: systems and elements
  • 367 - Communications, electrical: acoustic wave systems and devices
  • 428 - Stock material or miscellaneous articles