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发明名称
Improvements relating to cement guns
摘要
申请公布号
GB326002(A)
申请公布日期
1930.03.06
申请号
GB19290006025
申请日期
1929.02.23
申请人
HARRY PARDOE;ALFRED BENJAMIN BRITTON
发明人
分类号
E04F21/12
主分类号
E04F21/12
代理机构
代理人
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地址
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