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发明名称
Means for controlling dirigible aircraft
摘要
申请公布号
US1818104(A)
申请公布日期
1931.08.11
申请号
US19280321128
申请日期
1928.11.22
申请人
SPERRY GYROSCOPE COMPANY, INC.
发明人
SPERRY ELMER A.
分类号
B64B1/40
主分类号
B64B1/40
代理机构
代理人
主权项
地址
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