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经营范围
发明名称
Ore pass or box hole door assembly
摘要
申请公布号
ZA9504923(B)
申请公布日期
1996.02.13
申请号
ZA19950004923
申请日期
1995.06.14
申请人
HYDRO POWER PRODUCTS
发明人
RUDOLPH BUEHRMAN
分类号
E21D
主分类号
E21D
代理机构
代理人
主权项
地址
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