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Patentschrift: No. 206977, Klasse 63e., Gruppe 3

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Patentschrift: No. 206977, Klasse 63e., Gruppe 3

description

Summary

Fragment of German stamp affixed to back of patent.
A German patent held by Joseph Berliner. Title reads: "Vorrichtung zum Vulkanisieren ausgebesserter Stellen von Gummiradreifen."

date_range

Date

01/01/1909
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Source

Library of Congress
copyright

Copyright info

Public Domain

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