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经营范围
发明名称
PROCESS FOR PRODUCING STABLE ELECTRET CONSISTING OF A CRYSTALLINE HIGH MOLECULAR WEIGHT MATERIAL
摘要
申请公布号
US3691264(A)
申请公布日期
1972.09.12
申请号
USD3691264
申请日期
1970.07.16
申请人
KUREHA KAGAKU KOGYO KK.
发明人
MITSUO ASAHINA
分类号
H01G7/02;(IPC1-7):B29C25/00
主分类号
H01G7/02
代理机构
代理人
主权项
地址
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