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Patents > National tech categories: USPC 244/35R & Family year: 1900 - 1999 & First filing: Other

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Herman Leinweber (2)
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Tech fields:
airplane (15) · stability (9) · airfoil (8) · None (7) · rudder (7) · frame (7) · propeller (5) · navigation (5) · hybrid (4) · takeoff (3) · control (3) · monoplane (3)
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Showing below up to 38 results in range #1 to #38.

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