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发明名称
Pocket calculator for the calculation of calories
摘要
申请公布号
US2707592(A)
申请公布日期
1955.05.03
申请号
US19530395095
申请日期
1953.11.30
申请人
RICE WENDELL C
发明人
RICE WENDELL C.
分类号
G06C3/00
主分类号
G06C3/00
代理机构
代理人
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地址
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