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经营范围
发明名称
Improvements in moving stairways
摘要
申请公布号
GB485738(A)
申请公布日期
1938.05.24
申请号
GB19370034701
申请日期
1937.12.15
申请人
WAYGOOD-OTIS LIMITED
发明人
分类号
B66B23/14
主分类号
B66B23/14
代理机构
代理人
主权项
地址
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