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发明名称
Lamp support
摘要
申请公布号
US1819842(A)
申请公布日期
1931.08.18
申请号
US19280258002
申请日期
1928.02.29
申请人
RITTER DENTAL MANUFACTURING COMPANY INC.
发明人
MOORE CLARENCE W.
分类号
F21V21/14
主分类号
F21V21/14
代理机构
代理人
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地址
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