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发明名称
Self-sealing conveyer construction
摘要
申请公布号
US2564599(A)
申请公布日期
1951.08.14
申请号
US19470735401
申请日期
1947.03.18
申请人
HANNAH J. HAPMAN
发明人
HAPMAN HENRY W.
分类号
B65G53/44
主分类号
B65G53/44
代理机构
代理人
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