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发明名称
Photoelectric timer for x-ray apparatus
摘要
申请公布号
US2541187(A)
申请公布日期
1951.02.13
申请号
US19470785664
申请日期
1947.11.13
申请人
PICKER X-RAY CORPORATION WAITE MANUFACTURING DIVISION, INC.
发明人
BALL JACK;GRAVES EDWARD B.
分类号
H05G1/44
主分类号
H05G1/44
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代理人
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