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经营范围
发明名称
Saliva ejecting device
摘要
申请公布号
US2519595(A)
申请公布日期
1950.08.22
申请号
US19480044250
申请日期
1948.08.14
申请人
OLDER LESTER B
发明人
OLDER LESTER B.
分类号
A61C17/08
主分类号
A61C17/08
代理机构
代理人
主权项
地址
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