Improvements in or relating to incandescent electric lamps and other similar apparatus, and to glass refining apparatus in connection therewith.

Title: 
Improvements in or relating to incandescent electric lamps and other similar apparatus, and to glass refining apparatus in connection therewith.
Author/Artist: 
Vello, Leopoldo Sanchez.
Publisher: 
London : HMSO, 1924.
Description: 
2 p., 1 folded leaf : ill. ; 27 cm.
Other Authors: 
Great Britain. Patent Office.
Bib ID: 
91225
Notes: 
Stamped "Bibliotheek, Bur. Ind. Eigendom, 28 Oct. 1924."
Stamped "Openbaar gemaakt den: 4 Sep.1924."
Patent specification.
Patent no. 211,879, accepted August 11, 1924.
Date of application in the U.K.: May 11, 1923, no. 4496/24.
Convention date (France): May 12, 1922.