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发明名称
LETTER BALANCE
摘要
申请公布号
CA492538(A)
申请公布日期
1953.05.05
申请号
CAD492538
申请日期
申请人
FREDE DUELUND NIELSEN
发明人
FREDE DUELUND NIELSEN
分类号
主分类号
代理机构
代理人
主权项
地址
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