Improvements in or relating to glass compositions.

Title: 
Improvements in or relating to glass compositions.
Author/Artist: 
Regie Nationale Usines Rebault
Publisher: 
[London : HMSO], 1959.
Description: 
2 p., [1] folded leaf : ill. ; 27 cm.
Other Authors: 
Petrignani, Roger.
Great Britain. Patent Office.
Manufactures des glaces & produits chimiques de Saint-Gobain, Chauny & Cirey.
Bib ID: 
91427
Notes: 
Stamped: "Bibliotheek Bur. Ind. Eigendom 13 Okt.1959."
Patent specification.
Patent no. 817,995 published September 21, 1959.
Date of application in the U.K.: Nov. 29,1955, no. 34177/55.
Application made in France Dec. 9, 1954.
Application made in France May 5, 1955.