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Patents > Year granted: 1876

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None (21) · navigation (6) · balloon (6) · propulsion (5) · aerostat (3) · parachute (3) · airplane (3) · hybrid (2) · stability (2) · kite (2) · windmills (2) · airship (2) · airfoil (2)
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None (17) · CPC B64C11/346 (8) · CPC Y02E10/722 (5) · CPC F03D11/00 (5) · CPC B64C11/006 (4) · CPC B64C11/343 (2) · CPC Y02E10/72 (2) · CPC F05B2260/74 (2) · CPC B64C23/005 (2) · CPC B64C11/48 (2) · CPC B63H1/12 (2)
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