Alphabetical Index to the classification of German Patents

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From Alphabetisches Stichwörterverzeichnis, 1914, compiled by the German Patent Office. Translated by N. E. Kuhlmann, Official Translator, U.S. Patent Office.

English version of German index to the German patent classifications.

See a google books scan here! [1] PDF download available.

It might make plain how many categories there were in various years, though it didn't on first glance.

Below are various ways to find it or order it.

While there are a number of copies of this book on the web, the original Alphabetisches Stichwörterverzeichnis is not so readily available.


Original title Alphabetical index to the classification of German Patents
Simple title Alphabetical index to the classification of German Patents
Authors Deutsches Patent- und Markenamt, United States Patent Office, N. E. Kuhlmann
Date 1919
Countries US
Languages en, de
Keywords patents, patent classification
Journal
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