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发明名称
HEMIACETAL AND POLYMER COMPOSITION THEREOF
摘要
申请公布号
JPS57128680(U)
申请公布日期
1982.08.11
申请号
JP19810012276U
申请日期
1981.02.02
申请人
发明人
分类号
E21C37/02;(IPC1-7):E21C37/02
主分类号
E21C37/02
代理机构
代理人
主权项
地址
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