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PL274811A1
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Multi-function plant fertilization programmer
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PL271376A1
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Lighting fitting for gas discharge tubes in particular those used to provide light for plants cultivated in greenhouses
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PL268970A1
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Automatic control system for controlling drives of shading and theremally insulating shutters
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PL244802A2
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Apparatus for automatic controlling of three-way valve
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PL243617A2
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Automatic control system for controlling ventilators in green houses
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PL243618A2
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Electronic anemometer,especially for automatic controlling of air drains in glasshouses
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PL243453A2
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System for programmed control of operation of fine coal-fired furnace with travelling grate,especially for central heating of greenhouses
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PL241832A2
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Automatic temperature controller for plastic film lined clamps for storage of crops,especially of potatoes
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PL237378A2
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Electronic signalling device of exceeding of set temperature range
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PL237379A2
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Electronic temperature controller
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