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发明名称
Automatic meter reading apparatus
摘要
申请公布号
US2321922(A)
申请公布日期
1943.06.15
申请号
US19420439539
申请日期
1942.04.18
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
LEATHERS WARD
分类号
H04Q9/00
主分类号
H04Q9/00
代理机构
代理人
主权项
地址
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