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发明名称
Black and white signal limiter
摘要
申请公布号
US2724738(A)
申请公布日期
1955.11.22
申请号
US19500170298
申请日期
1950.06.26
申请人
PYE LIMITED
发明人
BABBS CYRUS HERBERT
分类号
F16D55/228;H04N5/16
主分类号
F16D55/228
代理机构
代理人
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