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发明名称
Egg-boiling frame
摘要
申请公布号
US1810258(A)
申请公布日期
1931.06.16
申请号
US19300470148
申请日期
1930.07.23
申请人
BERNHARD SPERBER
发明人
SPERBER BERNHARD
分类号
A47J29/06
主分类号
A47J29/06
代理机构
代理人
主权项
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