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US4053047A
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Combination display cover, handle, and tilt stand for portable instrument
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Indicator with hub lighting system and 360° concentric pointers
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CA987003A
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Moving coil meter
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CA989483A
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Electrical panel instrument
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CA988166A
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Moving coil meter
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US3978471A
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Digital thermometer using a dual slope a/d converter without a high precision voltage source
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US3984669A
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Fully digital spectrum analyzer using time compression and Discrete Fourier Transform techniques
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US3958236A
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Offset control in autozeroing circuits for analog-to-digital converters
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US3983478A
|
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Moving coil instrument having electrically conductive coil form parts connected to the coil
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US3997840A
|
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Panel meter with adapter cover
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US3908115A
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Adaptively tuned data receiver
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US4024472A
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Meter construction
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US3984624A
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Video system for conveying digital and analog information
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US3969705A
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Spectrum analyzer having means for transient signal analysis
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US3814183A
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Apparatus for detecting the entry of formation gas into a well bore
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US3882389A
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Meter construction
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US3924775A
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Positively lockable angularly adjustable handle
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US3802502A
|
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Apparatus for detecting the entry of formation gas into a well bore
|
|
US3881097A
|
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Fully digital spectrum analyzer using time compression and discrete fourier transform techniques
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US3877022A
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Enhancing resolution in analog-to-digital conversion by adding statistically controlled noise to the analog input signal
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