Radiant energy – Invisible radiant energy responsive electric signalling – Ultraviolet light responsive means
Patent
1988-03-07
1990-05-01
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Ultraviolet light responsive means
2504581, 2504611, G01N 2164
Patent
active
049221132
ABSTRACT:
A method for monitoring the coating weight, uniformity, defects or markings present in a coating of a composition applied to a substrate comprises the steps:
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Hannaher Constantine
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Sherman Lorraine R.
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