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发明名称
Improvements in mail chutes
摘要
申请公布号
GB460536(A)
申请公布日期
1937.01.29
申请号
GB19350025477
申请日期
1935.09.13
申请人
CUTLER MAIL CHUTE COMPANY
发明人
分类号
B65G11/04
主分类号
B65G11/04
代理机构
代理人
主权项
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