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经营范围
发明名称
POLYIMIDE PRECURSOR
摘要
申请公布号
JPS6253333(A)
申请公布日期
1987.03.09
申请号
JP19850192836
申请日期
1985.08.31
申请人
NITTO ELECTRIC IND CO LTD
发明人
YAMAGUCHI KATSUHIKO;HARADA CHIAKI;INOUE NAOKI;IGARASHI KAZUMASA;MIYOSHI TAKANORI;TANAKA MUNEKAZU
分类号
C08G73/00;C08G73/10
主分类号
C08G73/00
代理机构
代理人
主权项
地址
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Short period interrupter for telephone circuits - has two winding relay with CR circuit controlling time of interruption
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Switch with mechanism in case - has pushbutton with shaped slot for cam on slide which operates switch mechanism
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Gravel prepn. for bituminous concrete mfr. - by dry grinding in a depression, while removing dust particles
