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发明名称
Dispositif pour l'amplification et la mesure d'un déplacement matériel
摘要
申请公布号
FR1011948(A)
申请公布日期
1952.07.01
申请号
FRD1011948
申请日期
1949.05.02
申请人
发明人
BERTHIER RENE-MARIE
分类号
G01B5/30;G01B13/00;G01L27/00
主分类号
G01B5/30
代理机构
代理人
主权项
地址
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