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发明名称
Moving stairway
摘要
申请公布号
US2193583(A)
申请公布日期
1940.03.12
申请号
US19390249204
申请日期
1939.01.04
申请人
WESTINGHOUSE ELECTRIC ELEVATOR COMPANY
发明人
DUNLOP JAMES
分类号
B66B23/22
主分类号
B66B23/22
代理机构
代理人
主权项
地址
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