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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: Series: Patent Office Library series ; no. 1.Publication details: London : Patent Office, 1915.Edition: 3rd edDescription: 190 p. ; 17 cmSubject(s): DDC classification:
  • 608.012 19
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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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