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发明名称
Tree holder
摘要
申请公布号
US2699308(A)
申请公布日期
1955.01.11
申请号
US19490131852
申请日期
1949.12.08
申请人
ROBERT L. BIDWELL
发明人
SHACKELFORD ARTHUR H.
分类号
A47G33/12
主分类号
A47G33/12
代理机构
代理人
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