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发明名称
A VALVE FOR A HYDRAULIC PIT PROP
摘要
申请公布号
ZA8203506(B)
申请公布日期
1983.03.30
申请号
ZA19820003506
申请日期
1982.05.19
申请人
GULLICK D & D PTY LTD
发明人
JACOBS JOHANNES JACOBUS;BASTIMAN ANTONY
分类号
E21D;F16K
主分类号
E21D
代理机构
代理人
主权项
地址
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