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发明名称
Apparatus for charging mortar into pipe bores
摘要
申请公布号
US2369720(A)
申请公布日期
1945.02.20
申请号
US19430489253
申请日期
1943.05.29
申请人
CRANE HUBERT R
发明人
CRANE HUBERT R.
分类号
B28B13/02;B28B19/00
主分类号
B28B13/02
代理机构
代理人
主权项
地址
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