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-US-1620529.pdf +

William I. Ferris +

Patent-US-1622316.pdf +

Benjamin W. Hanle +

Patent-US-1624190.pdf +

Ivan D. Tefft +

Patent-US-1624194.pdf +

John C. Wahl +

Patent-US-1624554.pdf +

Theodor Kovacs +