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发明名称
Sand playbox
摘要
申请公布号
US2511089(A)
申请公布日期
1950.06.13
申请号
US19460648648
申请日期
1946.02.19
申请人
ZAHNER JOHN M
发明人
ZAHNER JOHN M.
分类号
A63H33/32
主分类号
A63H33/32
代理机构
代理人
主权项
地址
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