Drilldown: Patents

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Patents > Year filed: 1915 & Year granted: 1919 & Number of claims: 3-40

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construction (4) · LTA (3) · airplane (3) · military (3) · Frame (3) · Dirigibles (3) · Propulsion (3) · stability (2) · sensor (2) · instrument (2) · Propellers (2) · whole (2)
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