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发明名称
Extension table
摘要
申请公布号
US1805213(A)
申请公布日期
1931.05.12
申请号
US19290389961
申请日期
1929.09.03
申请人
GREENWOOD ASSOCIATES
发明人
GREENWOOD MARCUS J.
分类号
A47B1/02
主分类号
A47B1/02
代理机构
代理人
主权项
地址
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