CH366207A
(en)
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Variable pitch propellers
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FI29031A
(en)
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A method of making a boat and a boat made using the method
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FR1175912A
(en)
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Self-triangulating pylon
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FR1184203A
(en)
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Artificial heart
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FR1190147A
(en)
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Turbine
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FR1185232A
(en)
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Turbine
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FR1192800A
(en)
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Inflatable
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FR1192041A
(en)
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Floating toy
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FR1166010A
(en)
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transformable ladder
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FR1185105A
(en)
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Underwater panel
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FR1177543A
(en)
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Underwater room
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FR1166302A
(en)
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Grapple
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FR1200493A
(en)
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Kite
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CH377589A
(en)
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Turbine
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AT208314B
(en)
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Action turbine
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FR1188195A
(en)
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Watertight windows and closures
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FR1187310A
(en)
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Turning joint
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FR1241555A
(en)
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Propeller
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FR1206264A
(en)
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Helicopter
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FR1168820A
(en)
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Thermo-propellant propeller
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ES60670Y
(en)
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Blind
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FI32403A
(en)
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Method of making a structural board
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AT209487B
(en)
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Truss
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ES60533Y
(en)
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Underwater mask
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FI40831C
(en)
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Method of making a zipper
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