Alphabetical index to the classification of German patents Alphabetisches Stichwörterverzeichnis of 1914.
Corporate Authors: | , |
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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: |