Drilldown: Patents

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Patents > Grant date: October 1913 & First filing: No

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None (3) · Joseph Allison Steinmetz (2)
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None (13) · airplane (9) · LTA (7) · frame (7) · construction (6) · stability (6) · military (4) · safety (3) · propulsion (3) · propellers (3) · Design (3) · wings (3)
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