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发明名称
X-ray timer tester
摘要
申请公布号
US2374280(A)
申请公布日期
1945.04.24
申请号
US19430478796
申请日期
1943.03.11
申请人
GERKE WALTER L
发明人
GERKE WALTER L.
分类号
G04D7/00;G04F10/00;H05G1/40
主分类号
G04D7/00
代理机构
代理人
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