GB437631A
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Improvements in or relating to screw propellers
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GB416255A
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Improvements in or relating to screw propellers and pitch control mechanism therefor
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US1982874A
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Method of tapering tubes
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GB399205A
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Improvements in or relating to adjustable pitch propeller
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US1870401A
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Hub for small propellers
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GB355329A
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Improvements in or relating to screw propellers
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GB345091A
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Improvements in or relating to screw propellers
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US1817556A
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Propeller for aircraft
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US1893612A
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Propeller
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US1805149A
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Method of balancing propeller blades
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US1870361A
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Propeller hub and blade mounting
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US1836700A
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Propeller
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US1862328A
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Propeller
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US1769775A
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Hub for propellers
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US1801486A
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Propeller hub
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US1760876A
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Airplane propeller
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US1769801A
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Propeller
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US1769767A
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Propeller
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US1763218A
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Propeller for airplanes and dirigible balloons
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US1790163A
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Propeller for aircraft
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