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经营范围
发明名称
Electro-magnetic device for imparting an intermittent pendular movement to a swinging member
摘要
申请公布号
GB310003(A)
申请公布日期
1930.01.16
申请号
GB19290011753
申请日期
1929.04.16
申请人
BING WFRKE
发明人
分类号
A63H19/32
主分类号
A63H19/32
代理机构
代理人
主权项
地址
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APPARATUS AND METHOD OF IMAGING WRITTEN INFORMATION.
ANECHOIC STRUCTURAL ELEMENTS AND CHAMBER.
Compositions
Needle assemblies
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Process
Testing vessel
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