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发明名称
PROCESS AND APPARATUS FOR PRE-EXPANDING POLYMER BEADS
摘要
申请公布号
CA876211(A)
申请公布日期
1971.07.20
申请号
CAD876211
申请日期
申请人
SINCLAIR-KOPPERS COMPANY
发明人
RICHARD H. IMMEL
分类号
主分类号
代理机构
代理人
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