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发明名称
Moving stairway
摘要
申请公布号
US1956155(A)
申请公布日期
1934.04.24
申请号
US19330677990
申请日期
1933.06.23
申请人
OTIS ELEVATOR COMPANY
发明人
LINDQUIST DAVID LEONARD;HANDY ARTHUR EDWARD;MARGLES SAMUEL GUSTAVE
分类号
B66B21/04;B66B23/04
主分类号
B66B21/04
代理机构
代理人
主权项
地址
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