Drilldown: Patents

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Patents > Year granted: 1910 - 1919 & Office: DE & Applicant is inventor: None & CPCs: None & Number of figures: None

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engine (11) · ICE (10) · motor (4) · instrument (3) · navigation (3) · piloting (3) · airplane (3) · bomb (2) · gas (2) · safety (2) · cylinder (2) · propeller (2) · electricity (2) · military (2) · fuel (2) · pressure (2)
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