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发明名称
Article support
摘要
申请公布号
US2220991(A)
申请公布日期
1940.11.12
申请号
US19390279451
申请日期
1939.06.16
申请人
BYE ALBERT K
发明人
BYE ALBERT K.
分类号
A47B61/00
主分类号
A47B61/00
代理机构
代理人
主权项
地址
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