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发明名称
Manhole cover support
摘要
申请公布号
GB1064638(A)
申请公布日期
1967.04.05
申请号
GB19650042731
申请日期
1965.10.08
申请人
HAROLD MOSES BOWMAN
发明人
分类号
B01J8/28;B03B4/06;E02D29/14;F26B3/08;F28C3/16
主分类号
B01J8/28
代理机构
代理人
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地址
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