French Patent 747,618 Addition 43,046 - Simplex scan 1

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French Patent # 747,618 Addition # 43,046
scan 1 of 3

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 747,618 Addition # 43,046 - Simplex
Date: French application February 1933
Derailleur brands: Simplex
Derailleurs: none

French Patent 747,618 Addition 43,046 scan 1 - Simplex main image