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发明名称
An improved method of and means for transmitting indications to a distance
摘要
申请公布号
GB409027(A)
申请公布日期
1934.04.26
申请号
GB19320029971
申请日期
1932.10.26
申请人
EDWARD LOWTHER HOLMES;HENRY HUGHES & SON, LIMITED;ARTHUR JOSEPH HUGHES
发明人
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