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经营范围
发明名称
Insulation and dust sealing door assemblies with integral testing means
摘要
申请公布号
GB2020719(A)
申请公布日期
1979.11.21
申请号
GB19780029929
申请日期
1978.07.14
申请人
JOHNSON A P
发明人
分类号
E06B7/22;E06B7/16;E06B7/23;(IPC1-7):E06B7/16
主分类号
E06B7/22
代理机构
代理人
主权项
地址
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