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发明名称
PENCIL LEAD COMPOSITION
摘要
申请公布号
JPH0427600(A)
申请公布日期
1992.01.30
申请号
JP19900132914
申请日期
1990.05.22
申请人
OSAKA GAS CO LTD;ASAHI GLASS CO LTD
发明人
MAEDA TOSHIYUKI;FUJIMOTO HIROYUKI;SAITO MICHIO;ARAI YUUKO;SASABE MIKIO
分类号
B43K19/18;B43K19/02;C09D13/00
主分类号
B43K19/18
代理机构
代理人
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