Proprietà:Invented by

Inventore o inventori che hanno presentato un brevetto, da indicare con nome e cognome, separato da virgole se sono più di uno. Usare il campo Inventor riportato dall'EPO o dall'ufficio americano dei brevetti.

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Patent-BE-465193.pdf +

Lucien Claret +

Patent-BE-513137.pdf +

Guy Frédéric Rigondaud +

Patent-BE-536146.pdf +

N. V. Vulpenhouderfabriek "Union" +

Patent-BE-548110.pdf +

Theodor Kovacs +

Patent-CA-225369.pdf +

Donald Ladd +