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经营范围
发明名称
Reversible seat or chair
摘要
申请公布号
US1808659(A)
申请公布日期
1931.06.02
申请号
US19280324933
申请日期
1928.12.10
申请人
S. KARPEN & BROS.
发明人
HULTGREN CHARLES R.
分类号
B61D33/00
主分类号
B61D33/00
代理机构
代理人
主权项
地址
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