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Instruments & Innovation

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Genre Scientific apparatus and instruments Remove constraint Genre: Scientific apparatus and instruments Rights Public Domain Mark 1.0 Remove constraint Rights: Public Domain Mark 1.0 Subject Bausch & Lomb Optical Company Remove constraint Subject: Bausch & Lomb Optical Company Subject Colorimetry--Instruments Remove constraint Subject: Colorimetry--Instruments Date 1942 Remove constraint Date: <span class='single'>1942</span>