FR1002973A -
Improvements in methods and devices for microscopic observation, in particular for the observation of ultramicroscopic structures
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Improvements in methods and devices for microscopic observation, in particular for the observation of ultramicroscopic structures
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G02B21/0004—Microscopes specially adapted for specific applications
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Chemical & Material Sciences
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Analytical Chemistry
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Optics & Photonics
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FR1002973D1946-11-131946-11-13
Improvements in methods and devices for microscopic observation, in particular for the observation of ultramicroscopic structures
ExpiredFR1002973A
(en)
Improvements to indirect test methods more particularly intended for determining the making capacity of switches and devices for carrying out said methods