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发明名称
Composite plate for stair treads and the like
摘要
申请公布号
US2073758(A)
申请公布日期
1937.03.16
申请号
US19350034064
申请日期
1935.07.31
申请人
SCHMELLER SR JOHN
发明人
SR. JOHN SCHMELLER,
分类号
E04F11/16
主分类号
E04F11/16
代理机构
代理人
主权项
地址
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