Inventor: Oates, John David
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Inventor: Hoekert, Hendrick Cozijn
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Inventor: Oates, John David
Inventor: Oates, John David
Inventor: Verhoef, Gijsbertus
Inventor: Kraan, Kees Jan
Inventor: Kraan, Kees Jan
Inventor: Bautista, Rodolfo Valdoz
Inventor: Kraan, Kees Jan
Inventor: Verhoef, Gijsbertus
Inventor: Ranney, Thomas G.
Inventor: Brotzman, Timothy Charles
Inventor: Kolster, Hendrik
Inventor: Kraan, Kees Jan
Inventor: Kraan, Kees Jan
Inventor: Kraan, Kees Jan