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发明名称
TEACHING AID SEGMENT IN THE FORM OF A CIRCUIT BOARD FOR TESTING HEAT EXPANSION
摘要
申请公布号
PL56140(Y1)
申请公布日期
1998.06.30
申请号
PL19940101303U
申请日期
1994.10.03
申请人
BERNAS PAWEL
发明人
BERNAS PAWEL
分类号
G01N25/16;G09B23/16;(IPC1-7):G09B23/16
主分类号
G01N25/16
代理机构
代理人
主权项
地址
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