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经营范围
发明名称
Self-leveling spoon
摘要
申请公布号
US2809426(A)
申请公布日期
1957.10.15
申请号
US19550551349
申请日期
1955.12.06
申请人
PICKERING GEORGE R
发明人
PICKERING GEORGE R.
分类号
A47G21/04
主分类号
A47G21/04
代理机构
代理人
主权项
地址
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