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经营范围
发明名称
Régulateur de circulation, de type perfectionné
摘要
申请公布号
FR712713(A)
申请公布日期
1931.10.09
申请号
FRD712713
申请日期
1931.03.06
申请人
发明人
BOLTON WESLEY-TODD
分类号
G08G1/09
主分类号
G08G1/09
代理机构
代理人
主权项
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