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发明名称
Coin operated vending machine
摘要
申请公布号
US2216811(A)
申请公布日期
1940.10.08
申请号
US19370162869
申请日期
1937.09.08
申请人
DUVALL GEORGE L
发明人
DUVALL GEORGE L.
分类号
G07F11/44
主分类号
G07F11/44
代理机构
代理人
主权项
地址
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