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发明名称
Improvements in or relating to sliding-rule type calculators
摘要
申请公布号
GB596635(A)
申请公布日期
1948.01.07
申请号
GB19450023525
申请日期
1945.09.12
申请人
ALAN FREDERICK TURNER;BURNS SNODGRASS
发明人
分类号
G06G1/12
主分类号
G06G1/12
代理机构
代理人
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地址
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