Key to the classifications of the patent specifications of France, Germany, Austria, Netherlands, Norway, Denmark, Sweden, and Switzerland in the Library of the Patent Office.

By: Science Reference Library (British Library)
Series: Patent Office Library series ; no. 1Publisher: London : Patent Office, 1915Edition: 3rd edDescription: 190 p. ; 17 cmSubject(s): Patents -- ClassificationDDC classification: 608.012
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Opi 28Sep36

Includes indexes to each country.

'Printed for His Majesty's Stationery Office by Darling & Son, published at the Patent Office'.

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