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发明名称
Table of the extension leaf type
摘要
申请公布号
US2293496(A)
申请公布日期
1942.08.18
申请号
US19400359115
申请日期
1940.09.30
申请人
EGGER OTTO R
发明人
EGGER OTTO R.
分类号
A47B1/00
主分类号
A47B1/00
代理机构
代理人
主权项
地址
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