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发明名称
Roof bolt
摘要
申请公布号
ZA9309321(B)
申请公布日期
1995.04.06
申请号
ZA19930009321
申请日期
1993.12.13
申请人
NATIONAL WOOD PRODUCTS (PTY) LIMITED.
发明人
THEODORE DANIEL SWEMMER
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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