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发明名称
THE MOUNTING OF CLAPPERS IN ROCKCUTTING MACHINES
摘要
申请公布号
ZA7101664(B)
申请公布日期
1972.06.28
申请号
ZA19710001664
申请日期
1971.03.15
申请人
CHAMBER OF MINES SERVICES LTD
发明人
SIBILSKI H
分类号
E21C
主分类号
E21C
代理机构
代理人
主权项
地址
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