Improvements in or relating to glazed roofing.

Title: 
Improvements in or relating to glazed roofing.
Author/Artist: 
Societe Anonyme des Manufactures de Glaces et Produits Chimiques de Saint-Gobain, Chauny & Cirey.
Publisher: 
[London : HMSO], 1938.
Description: 
3 p., [1] leaf : ill. ; 27 cm.
Other Authors: 
Great Britain. Patent Office.
Bib ID: 
91373
Notes: 
Stamped "Uitgegeven den 10 Mrt. 1938".
Patent specification.
Patent no. 479,877 accepted: February 14, 1938.
Date of application in the U.K.: Aug. 14, 1936, no. 22432/36.
Convention date (France): Aug. 24, 19365.