๐”– Bobbio Scriptorium
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Eye-protective glasses


Book ID
104131359
Publisher
Elsevier Science
Year
1938
Tongue
English
Weight
52 KB
Volume
226
Category
Article
ISSN
0016-0032

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THE object of the present paper is to give the general characteristics of certain newly-developed glasses sometimes used for protecting the eye from radiant energy, especially the infra-red or so-called heat rays. Because of the difficulty in reproducing the same color in different melts, no attempt

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