Patents for inventions
Subtitle: Abridgments of specifications.  Class 83 (ii) Metal articles and forms, combination apparatus and processes specially designed for producing and treating.  Period-A. D. 1916-20 <100,001-155,800>
Publisher: H. M. Stat. off.
Published: 1927
Place of publication: London
Language: eng
Number of pages: 186
Subjects: Patents
Other titles: Metal articles