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发明名称
EXPANSION ASSEMBLY AND SHELL
摘要
申请公布号
ZA8505299(B)
申请公布日期
1986.02.26
申请号
ZA19850005299
申请日期
1985.07.13
申请人
IZAK CHATER;ALLAN HENRY GEORGE BROWN
发明人
IZAK CHATER;ALLAN HENRY GEORGE BROWN
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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