Ronald J. Duke

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Apparatus and method for controlling tension in a movable web

Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent

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Color sensor

Optics: measuring and testing – By shade or color – With color determination by light intensity comparison
Patent

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Color sensor

Optics: measuring and testing – By shade or color – With color determination by light intensity comparison
Patent

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Color sensor

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent

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Cue delay circuit

Horology: time measuring systems or devices – Combined with disparate device
Reexamination Certificate

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Profile ID: LFUS-PAI-P-923695

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