Phototropic glass composition and method of treating it.

Title: 
Phototropic glass composition and method of treating it.
Author/Artist: 
Corning Glass Works.
Publisher: 
[London : HMSO], 1965.
Description: 
9 p., [1] chart : ill. ; 27 cm.
Other Authors: 
Great Britain. Patent Office.
Bib ID: 
91363
Notes: 
Patent specification.
Patent no. 984,652 published March 3, 1965.
Date of application in the U.K.: Nov. 5, 1963, no. 43675/63.
Application made in United States of America (no. 237,627) on Nov. 14, 1962.