B63H 3/04
Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable
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Edits on 15 Mar, 2022
Golden AI
Edits on 8 Mar, 2022
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B63H 3/04
Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable
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