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发明名称
Roll film holder for radiographic work
摘要
申请公布号
US2847580(A)
申请公布日期
1958.08.12
申请号
US19560602273
申请日期
1956.08.06
申请人
PIPELINE X-RAY SERVICE
发明人
ARVANETAKIS KIRYAKO;RADCLIFF CLARENCE W.
分类号
G03B37/00;G03B42/02
主分类号
G03B37/00
代理机构
代理人
主权项
地址
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