DE2339500A1
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Protecting concrete/metal constructions - by treating with a mixt of epoxy resin, tar, cement, talc, and diluent
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DE2132170A1
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Plant protection products against powdery mildew and process for their manufacture
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DE1909147A1
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Logical circuit for reporting events
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GB1036303A
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Inhibited ammoniacal refrigerating agent
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DE1219442B
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Process for reducing corrosion in cooling systems
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DE1121037B
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Process for the extraction of germanium from gas water
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DE1141269B
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Process for the production of germanium and diphenols, especially pyrocatechol, from coal tars and tea oils
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GB891343A
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Improvements in or relating to the carbonization of coal
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DE1204188B
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Vertical chamber furnace for continuous coking of non-baking coals
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