John L. Downing

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Convertible dual beam differential spectrofluorometer and absorp

Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent

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Correction of linear errors in position measuring transducers

Inductor devices – With deformable or distortable coil and/or core
Patent

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Digital to analog converter with system gain insensitivity

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Electrostatic position-measuring transducer

Communications: electrical – Systems – Call station
Patent

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Enhanced fluorescent emission

Optics: measuring and testing – By dispersed light spectroscopy – With sample excitation
Patent

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Profile ID: LFUS-PAI-P-19359

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