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Patents > Year filed: 1917 & CPCs : CPC B64C25/60 or CPC B64C3/00

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None (6) · Jean-Adolphe Leseurre (3) · Charles-Édouard-Pierre Gourdou (3) · Dermot Joseph Mooney (2) · Georges Guérin (2) · James Jacob Mayrow (2)
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