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FR1483327A
|
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Optical coding device
|
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FR1409300A
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Spectroscopic calculator and corresponding control circuit
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US3297860A
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Spectroscopic computer
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FR1368143A
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Apparatus for the continuous determination of the correlation function between two waves of varying amplitude
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GB1016188A
|
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Improvements in or relating to apparatus for continuously determining the correlation function between two waves of varying amplitude
|
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US3210747A
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Telemetering system
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US3172404A
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Visual testing apparatus
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Multi-track data recording system
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Switching type amplifiers for both a.c. and d.c. signals
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|
US3168721A
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Information transfer systems
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US2217843A
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Measurement of electrically conductive material, particularly upon a nonconductive base
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CA713803A
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Visual testing apparatus
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