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Patents > Year filed: 1910 & CPCs: CPC B64C17/00 & First filing: No

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Sam Leonard Walkden (2) · Désiré Bille (2) · André Ramel (2) · Jean Georges Ramel (2) · Joseph Wetterwald (2)
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Désiré Bille (2) · Sam Leonard Walkden (2) · André Ramel (2) · Jean Georges Ramel (2) · Joseph Wetterwald (2)
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