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发明名称
Table-leaf support
摘要
申请公布号
US1798786(A)
申请公布日期
1931.03.31
申请号
US19270234337
申请日期
1927.11.19
申请人
THE SINGER MANUFACTURING COMPANY
发明人
CHASON DANIEL H.
分类号
A47B29/00
主分类号
A47B29/00
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代理人
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