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经营范围
发明名称
Combination day and sleeping railroad coach
摘要
申请公布号
US1977881(A)
申请公布日期
1934.10.23
申请号
US19330672530
申请日期
1933.05.24
申请人
HUTT ALBERT E
发明人
HUTT ALBERT E.
分类号
B61D1/06
主分类号
B61D1/06
代理机构
代理人
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地址
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