4. Stock material or miscellaneous articles
  5. Structurally defined web or sheet
  6. Including grain, strips, or filamentary elements in...

Ken Stephen Schermacher

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Liquid measurement cell having a pressurized air cavity therein

Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate

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Liquid measurement cell having a transparent partition therein

Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate

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Method and apparatus for characterizing the color properties...

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrophotometer
Reexamination Certificate

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Method and apparatus for measuring the color properties of...

Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate

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Method and apparatus for measuring the color properties of...

Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2002335

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