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Furrow opener
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Seed tube of drill
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Method of recovering bromine
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Method of producing lime
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Method of recovering bromine from solutions
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Device for measuring pulse repetition period
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Device for measuring time intervals between middle points of pulses with arbitrary duration
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Digital frequency multiplier
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Method of extinguishing fire in a room
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Method of obtaining solid ammonium bromide
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Spindle drive for cotton-picking drum
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Method for preparing metal bromides
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Method of producing metal haloids and aluminium hydroxide
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Process for producing solution of iron bromide
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Solution for cleaning gases from chlorine
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Method of producing halogenides of alkali and alkali-earth metals
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Process for producing bromine and air mixture
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Heat-mass exchange apparatus
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Method of producing hydrobromic acid
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