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发明名称
Doorcheck for vending machines
摘要
申请公布号
US1899024(A)
申请公布日期
1933.02.28
申请号
US19310507579
申请日期
1931.01.09
申请人
HORN & HARDART BAKING CO.
发明人
EARLY THOMAS F.
分类号
G07F5/26
主分类号
G07F5/26
代理机构
代理人
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地址
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