Répertoire des Numéros de brevets avec leur indices de classement : Bibliothèque des inventions horlogères, années 1888-1947. Index 1 / Robert Berthoud.

Contributor(s): Material type: TextTextPublisher: [Place of publication not identified] : [publisher not identified], [1950?]Description: 124 pages ; 30 cmContent type:
  • text
Media type:
  • unmediated
Carrier type:
  • volume
Subject(s):
Holdings
Item type Current library Call number Status Date due Barcode
Books Books Jost Bürgi Library Reading Room TS543.S9 R46 1950z (Browse shelf(Opens below)) Available 31560000076980

31560000076980 10147

Index of horological Swiss patent numbers 1888 to 1947 crossreferenced to the Berthoud classification system of horological innovations

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