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发明名称
Supporting device
摘要
申请公布号
US2239304(A)
申请公布日期
1941.04.22
申请号
US19380217704
申请日期
1938.07.06
申请人
STELL HERBERT L
发明人
STELL HERBERT L.
分类号
A47G25/32
主分类号
A47G25/32
代理机构
代理人
主权项
地址
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