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PL323420A1
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Method of determining distortion of electric signal
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PL323419A1
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Apparatus for testing and calibrating temperature sensors
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PL323421A1
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Power factor and cosine coefficient measuring circuit
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PL319081A1
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Method of and system for checking temperature measuring circuits during their normal operation
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PL318026A1
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Apparatus for generating radio signal of a rescue transponder
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PL314568A1
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System for testing temperature measurement circuits
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PL304562A1
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Circuit arrangement for measuring transient thermal impedance of bipolar transistors
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PL302998A1
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Method of measuring thermal resiostance of semiconductor diodes with their junction within breakdown range
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PL289688A1
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Method of utilizing impurities and wastes from ships
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PL161928B1
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Apparatus for simultaneously measuring coarsness and concentraction of dust contained in gases
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PL162126B2
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Method of potato preservation
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PL277781A2
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Incandescent and photoresistant frequency transducer into d.c. voltage
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PL277558A2
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Incadescent photoresistor converter of frequency deviation from rated value
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PL277583A2
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Incandescent photoresistor converter of the relative difference of frequency
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PL276848A2
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Transoptor-type frequency-to-voltage converter
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PL276285A2
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Circuit arrangementt for adjusting and stabilizing rms value ac waveforms
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PL272745A2
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Method of imaging anticollision maneouvre in an anticollision device
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PL272691A2
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Method for evaluating technical condition of connecting rod bearings of combustion engines without crossheads
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PL271777A2
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Method of adapting a digital course controller of giro-pilot navigational instruments
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PL271127A2
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Method for manufacturing whammel
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