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发明名称
Mail chute
摘要
申请公布号
US2263809(A)
申请公布日期
1941.11.25
申请号
US19380207929
申请日期
1938.05.14
申请人
MARTIN KATZ
发明人
KATZ MARTIN
分类号
B65G11/04
主分类号
B65G11/04
代理机构
代理人
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