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发明名称
ORONPROPP
摘要
申请公布号
SE399640(B)
申请公布日期
1978.02.27
申请号
SE19720013785
申请日期
1972.10.25
申请人
* NATIONAL RESEARCH CORPORATION
发明人
R * GARDNER JR
分类号
A61F11/08;A61F11/10;H04R1/10;(IPC1-7):A61F11/02;H04R25/02
主分类号
A61F11/08
代理机构
代理人
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地址
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