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发明名称
Automatic calendar
摘要
申请公布号
US2039567(A)
申请公布日期
1936.05.05
申请号
US19340726529
申请日期
1934.05.19
申请人
IVOR TUCKETT
发明人
TA'BOIS PERCIVAL LEO
分类号
G04F1/06
主分类号
G04F1/06
代理机构
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