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发明名称
Apparatus for transferring material
摘要
申请公布号
US1823148(A)
申请公布日期
1931.09.15
申请号
US19270239155
申请日期
1927.12.10
申请人
U. U. CARR;WILLIAM F. NANSTIEL
发明人
JONES WILLIAM R.
分类号
E21F13/06
主分类号
E21F13/06
代理机构
代理人
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地址
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