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SU106293A1
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Method of soldering and tinning using fluxes
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SU72937A1
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Briquette for editing razors
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SU69814A1
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Device for guiding the blind
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Photovoltaic device for the orientation of the blind
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SU66045A1
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Method of food disinfection
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SU66027A1
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The method of gluing products from acrylic resins
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Chloropicrin display method
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SU31660A1
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Electric thermometer
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SU31072A1
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Irradiation device
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SU24025A1
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Cooling method of cold junctions of thermoelements
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SU22136A1
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Device for automatic control of the amount of electric current in AC circuits
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SU18842A1
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Swing Rectifier
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SU18363A1
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Apparatus for producing photoelectric effect
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SU22761A1
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Battery for gas secondary galvanic cells
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SU24471A1
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Radio receiver
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SU16278A1
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Thermoelectric column
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SU17386A1
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A device for obtaining images by electrolysis of solutions of metal salts
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SU15795A1
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A method of obtaining a silver solution for the manufacture of photosensitive emulsions
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SU18602A1
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A method of manufacturing a photosensitive emulsion for photographic paper
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SU8875A1
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Method for making barite paper for photography
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