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7 bytes added ,  16:40, 6 March 2022
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HS-7 Permanent magnet Hybrid Permanent and electromagnetic objective and condensor, p1 electromagnetic p2 permanent magnet
 
HS-7 Permanent magnet Hybrid Permanent and electromagnetic objective and condensor, p1 electromagnetic p2 permanent magnet
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HFS-2: First Practical commercial Field emission Scanning Electron Microscope
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HFS-2: First Practical commercial Field emission Scanning Electron Microscope : 1972
    
[[Category:Electron Microscope]]
 
[[Category:Electron Microscope]]

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