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发明名称
Improvements in or relating to power transmission means for coaxial gyroplane rotors
摘要
申请公布号
GB616222(A)
申请公布日期
1949.01.18
申请号
GB19460026126
申请日期
1946.08.30
申请人
LOUIS BREGUET
发明人
分类号
B64C27/12
主分类号
B64C27/12
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