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发明名称
Boat calculator
摘要
申请公布号
US2845223(A)
申请公布日期
1958.07.29
申请号
US19570651000
申请日期
1957.04.05
申请人
MAHONEY JOSEPH M
发明人
MAHONEY JOSEPH M.
分类号
G06G1/14
主分类号
G06G1/14
代理机构
代理人
主权项
地址
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