Browsing by Subject "G01J 3/42 (20130101)"
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Conversion of Dual Wave Beam Spectrophotometer to Dual Wavelength Spectrophotometer
(U.S. Patent and Trademark Office, 1990-05-29)A conversion and kit for a dual beam spectrophotometer permitting it to operate in dual wavelength mode and thereby obtaining resolution heretofore unavailable from similar machines. The present invention provides for a ...