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Method for purifying water from pesticides
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Method of of hydroponic growing of plants
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Method of preparing fish food from peat
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Method of determining demand of fish-breeding ponds for fertilizers
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Method of activating the eggs of crustaceans
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Unit for fish growing
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Unit for transporting live fish
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Method of breeding hybrid forms of fish with monosexual male sterility of hybrid
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Method of deglueing fertilised fish spawn
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Device for fish feed distribution
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Apparatus for spawn incubation and young fish growing
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Method of preparing additional feeding for fish from peat
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Fish larvae registering arrangement
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Device for incubation of spawn and ageing fish eggs
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Fish pump impeller
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Device for driving fish to fishing place
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Two-stage fish separator
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Method of producing diploid gynogenetic progeny of carp fish
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