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经营范围
发明名称
Variable impulse transmitter
摘要
申请公布号
US2099982(A)
申请公布日期
1937.11.23
申请号
US19350000829
申请日期
1935.01.08
申请人
LANDIS & GYR, A.-G.
发明人
KOENIG WERNER
分类号
G08C19/18;H04M1/272
主分类号
G08C19/18
代理机构
代理人
主权项
地址
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