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发明名称
Parking clock
摘要
申请公布号
US1749977(A)
申请公布日期
1930.03.11
申请号
US19230683159
申请日期
1923.12.28
申请人
HUTCHES ENGINEERING ASSOCIATION, INC.
发明人
JR. BENJAMIN F. HUTCHES,
分类号
G07C1/30
主分类号
G07C1/30
代理机构
代理人
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