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经营范围
发明名称
SILENCIEUX OU ANALOGUE
摘要
申请公布号
BE747396(A1)
申请公布日期
1970.09.16
申请号
BED747396
申请日期
1970.03.16
申请人
ENVIRONMENTAL INDUSTRIES, 645 D STREET, S. E. A WASHINGTON D. C. (E. U. A. ),
发明人
MITCHELL L. WER BELL
分类号
F41A21/30;(IPC1-7):F41C/
主分类号
F41A21/30
代理机构
代理人
主权项
地址
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