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发明名称
Reenforced propeller blade end
摘要
申请公布号
US1835023(A)
申请公布日期
1931.12.08
申请号
US19290393672
申请日期
1929.09.19
申请人
PITTSBURGH SCREW AND BOLT CORPORATION
发明人
DICKS THOMAS A.
分类号
B64C11/04
主分类号
B64C11/04
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代理人
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