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经营范围
发明名称
Amélioration de la turbulence des fluides
摘要
申请公布号
FR775239(A)
申请公布日期
1934.12.21
申请号
FRD775239
申请日期
1933.09.20
申请人
发明人
ROBERT
分类号
B64C21/10;B64C23/00
主分类号
B64C21/10
代理机构
代理人
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