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发明名称
Luftschraube mit verstellbaren Fluegelblaettern
摘要
申请公布号
DE1506123(A1)
申请公布日期
1969.06.19
申请号
DE19661506123
申请日期
1966.09.07
申请人
VOLL,ERHARD;HELFRICH,KARL
发明人
VOLL,ERHARD;HELFRICH,KARL
分类号
B64C11/30
主分类号
B64C11/30
代理机构
代理人
主权项
地址
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