Telescoptics

Scientific American 1939 / 6 Vol. 160; Iss. 6

Telescoptics

Ingalls, Albert G.
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Volume:
160
Language:
english
Journal:
Scientific American
DOI:
10.1038/scientificamerican0639-400
Date:
June, 1939
File:
PDF, 1.02 MB
english, 1939
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