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mask alignment device

mask alignment device

Bausch & Lomb Optical Company
1963
microscope case

microscope case

Bausch & Lomb Optical Company
1935-1940
stage micrometer

stage micrometer

Bausch & Lomb Optical Company
1950-1960
/ 1

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The Collection of Historical Scientific Instruments
Science Center, Room 371 • 1 Oxford Street
Cambridge, MA 02138 •chsi@fas.harvard.edu
p. 617-495-2779 • f. 617-496-5794
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