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US3302868A
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Fluid handling apparatus for use as vacuum pump
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Glow cathode for electrode systems which are operated in gases containing oxygen
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Holder for a spiral-shaped glow cathode
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CH434719A
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Device for plastic injection molding
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Device for measuring the smallest ion currents
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Tight wall duct for a swiveling and rotating rod through the wall of a vacuum container
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Demonstration device designed like an optical bench for optical and mechanical demonstration experiments
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Demonstration device for scientific experiments
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Tube equipped, voltage-compensated measuring amplifier
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Evacuable injection mold
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Vacuum valve
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mass spectrometry
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Process for the evacuation of degassing rooms for molten metals
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Semiconductor arrangement for demonstration purposes
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Multi-stage electrometer amplifier with low time constants
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Device for generating a vacuum in the mold of an injection molding machine
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Device and method for measuring pressure with a compression vacuum meter
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DE1188794B
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Device for a plastic injection molding machine
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McLeod-type vacuum gauge
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DE1167921B
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Electrical oscillation circuit for constant frequency high frequency oscillation stages
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