AEROSOL AND FINE DUST MEASURING DEVICE ACCORDING TO THE SPREADLIGHT PRINCIPLE
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METHOD FOR ADJUSTING A DEVICE FOR HIGH-SPEED PHOTOGRAPHY AND DEVICE FOR IMPLEMENTING THE METHOD
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Method and device for reducing the operating costs and increasing the reliability of meteorological measuring instruments, in particular cloud ceilometers and slant visual range instruments with the aid of semiconductor lasers
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Water-vapour detector for weather balloons - has photoelectric elements in air tube for modulating radiosonde transmitter
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DEVICE FOR MEASURING THE OPTICAL PROPERTIES OF THE ATMOSPHERE
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METHOD FOR SHORT-TERM DURATION OF SURFACE ELEMENTS
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DEVICE FOR CREATING HARD STRUCTURES
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Superfine grained metallic surface structur- - es
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Pulse-optical light barrier automatically switchable to ultrasound
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Method for measuring distances using flashes of light
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X-ray tubes for impulse operation
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Process for high frequency induction soldering and hardening
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Washer with unbalance vibrator
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Process for the curve-like recording of the spectral absorption distribution of solutions
