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发明名称
X-ray protective device
摘要
申请公布号
US1754810(A)
申请公布日期
1930.04.15
申请号
US19220545488
申请日期
1922.03.21
申请人
WAPPLER ELECTRIC COMPANY, INC.
发明人
WAPPLER REINHOLD H.
分类号
G21K1/02;H05G1/04
主分类号
G21K1/02
代理机构
代理人
主权项
地址
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