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发明名称
Procédé de fabrication de montures à cristal piézo-électrique
摘要
申请公布号
FR953895(A)
申请公布日期
1949.12.14
申请号
FRD953895
申请日期
1947.10.07
申请人
发明人
BERETZKI DANIEL-RENE
分类号
H01G4/224;H03H9/09;H03H9/10
主分类号
H01G4/224
代理机构
代理人
主权项
地址
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