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发明名称
Mécanisme de variation de pas pour hélices
摘要
申请公布号
FR862210(A)
申请公布日期
1941.03.01
申请号
FRD862210
申请日期
1939.12.11
申请人
发明人
SEPPELER EDUARD
分类号
B63H3/02;B63H3/06;B63H5/10;B64C11/30;B64C11/36
主分类号
B63H3/02
代理机构
代理人
主权项
地址
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