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发明名称
Electromagnetic counting device and contact bank
摘要
申请公布号
US2844686(A)
申请公布日期
1958.07.22
申请号
US19550519791
申请日期
1955.07.05
申请人
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
发明人
ARTHUR RICHARD P.
分类号
H03K23/74
主分类号
H03K23/74
代理机构
代理人
主权项
地址
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