Alphabetical index to the classification of German patents Alphabetisches Stichwörterverzeichnis of 1914.
| Corporate Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Book |
| Language: | English German |
| Published: |
Washington,
Govt. Print. Off.,
1919
Washington, Govt. print. off., 1919 |
| Series: | History of technology preservation project ;
(MN 00771.1) |
| Subjects: |