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发明名称
Extension table
摘要
申请公布号
US1763572(A)
申请公布日期
1930.06.10
申请号
US19290352969
申请日期
1929.04.06
申请人
B. WALTER & CO.
发明人
WALTER FREDERICK B.
分类号
A47B1/05
主分类号
A47B1/05
代理机构
代理人
主权项
地址
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