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发明名称
Mouth bit
摘要
申请公布号
US2172501(A)
申请公布日期
1939.09.12
申请号
US19380228120
申请日期
1938.09.02
申请人
BARKER DALZIEL IRA
发明人
DALZIEL IRA BARKER
分类号
B68B1/06
主分类号
B68B1/06
代理机构
代理人
主权项
地址
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