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发明名称
Back rest for cots
摘要
申请公布号
US2020754(A)
申请公布日期
1935.11.12
申请号
US19340753215
申请日期
1934.11.15
申请人
WILLIAMS LELAND W
发明人
WILLIAMS LELAND W.
分类号
A47C20/04
主分类号
A47C20/04
代理机构
代理人
主权项
地址
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