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发明名称
Dental film holder
摘要
申请公布号
US1792005(A)
申请公布日期
1931.02.10
申请号
US19260134431
申请日期
1926.09.09
申请人
ELLIOTT MERTON F
发明人
ELLIOTT MERTON F.
分类号
G03B42/04
主分类号
G03B42/04
代理机构
代理人
主权项
地址
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