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Method accelerate the creation of fertile areas on hillock filled lands of devyatkin v.d
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V. d. deviatkin(s self-cutting device for catching fish
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Device for removal of fish from ice-hole of devyatkin v.d
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Underground greenhouse of devyatkin v.d
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Device and method of ice fishing of devyatkin v.d
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Method of multiple uses of tops in growing several crops according to devyatkin vd
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Device for fishing live baits from hole of devyatkin vd
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Device for growing plants
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Method of winter planting potatoes of devyatkin vd
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Devyatkin self-actuated cutting jaws
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Method and device for grow crops on trees by devyatkin vd
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RU2381432C1
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Heat exchange method in gas and liquid media
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