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发明名称
Electromechanical device
摘要
申请公布号
US2405179(A)
申请公布日期
1946.08.06
申请号
US19410409444
申请日期
1941.09.04
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
JR. ROBERT BLACK,;ROMANOW FRANK F.
分类号
G01S1/72
主分类号
G01S1/72
代理机构
代理人
主权项
地址
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