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US2953321A
|
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Vertical take-off flying platform
|
|
US2818123A
|
|
Rotary wing aircraft
|
|
US2795283A
|
|
Helicopter rotor ram jet drive
|
|
DE957003C
|
|
Continuously working ramjet engine for rotor blades of helicopters
|
|
GB735595A
|
|
Ram jet engines
|
|
GB735572A
|
|
Rotary wing aircraft control system
|
|
GB735571A
|
|
Rotor head for rotary wing aircraft
|
|
GB713358A
|
|
Cyclic pitch control mounting for rotary wing aircraft
|
|
US2818226A
|
|
Rotary wing aircraft frame construction
|
|
US2740482A
|
|
Rotor blade mounted jet engine
|
|
US2761635A
|
|
Rotary wing aircraft system
|
|
US2631679A
|
|
Rotor head for rotary wing aircraft
|
|
US2597323A
|
|
Crop dusting equipment
|
|
US2631676A
|
|
Jet-propelled helicopter wing construction
|
|
CA534605A
|
|
Rotary wing aircraft system
|
|
CA500521A
|
|
Rotor head for rotary wing aircraft
|
|
CA535004A
|
|
Jet engine
|
|
CA521840A
|
|
Cyclic pitch control mounting for rotary wing aircraft
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