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发明名称
Perfectionnement aux abat-jour
摘要
申请公布号
FR840013(A)
申请公布日期
1939.04.18
申请号
FRD840013
申请日期
1937.12.17
申请人
发明人
STRANG
分类号
F21V1/00
主分类号
F21V1/00
代理机构
代理人
主权项
地址
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