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Creator Bausch & Lomb Optical Company Remove constraint Creator: Bausch & Lomb Optical Company Place New York (State)--Rochester Remove constraint Place: New York (State)--Rochester Subject Refractometers Remove constraint Subject: Refractometers Date 1927 to 1929 Remove constraint Date: <span class="from" data-blrl-begin="1927">1927</span> to <span class="to" data-blrl-end="1929">1929</span>

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