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发明名称
PLASTIC RADIATION AND ACOUSTIC BARRIERS
摘要
申请公布号
CA856304(A)
申请公布日期
1970.11.17
申请号
CAD856304
申请日期
申请人
HELMUT F. PRAHL
发明人
HELMUT F. PRAHL
分类号
主分类号
代理机构
代理人
主权项
地址
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