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发明名称
PRODUCTION OF PITCH
摘要
申请公布号
JPH0260992(A)
申请公布日期
1990.03.01
申请号
JP19880214541
申请日期
1988.08.29
申请人
OSAKA GAS CO LTD
发明人
TOYODA TAKESHI;KUSANO YOSHIRO
分类号
C10G1/06;C10C3/10;D01F9/15
主分类号
C10G1/06
代理机构
代理人
主权项
地址
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