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发明名称
Dispositif indicateur du degré de poli d'une surface
摘要
申请公布号
FR1068844(A)
申请公布日期
1954.07.01
申请号
FRD1068844
申请日期
1952.09.11
申请人
GENERAL MOTORS CORPORATION
发明人
分类号
G01B7/34
主分类号
G01B7/34
代理机构
代理人
主权项
地址
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