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Persons keyword: Freeman George S P
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Patent No. 469,079 Improvements in or relating to Electron Discharge Devices comprising Photo-electrically active electrodes
UK0108 NAEST 148/1/17
1937-07-15
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Report No. RH/61 Deflection of an electron beam between cylindrical deflectors in a magnetic field as suggested by Mr Freeman
UK0108 NAEST 148/4/68
1944-11-10
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