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DE624043C
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Process for the liquefaction of asphalt and petroleum bitumen
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GB416626A
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Improved manufacture of colloidal graphite suspensions
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DE643282C
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Device for the production of colloidal graphite suspensions for lubricants
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DE639886C
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Process for the production of colloidal graphite suspensions for lubricants
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DE616179C
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Process for waterproofing paper and other fibrous materials
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DE612423C
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Light-colored, water-miscible, weatherproof and water-washable paints when dry
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DE598470C
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|
Process for the production of a bituminous road building material
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DE550871C
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Process to prevent rust formation on metals by using drilling oils or drilling grease in a highly diluted, aqueous emulsion
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DE567100C
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Process for the production of road binders
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DE566670C
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Process for the production of bitumen emulsions
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DE484641C
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Process for the production of a cold workable road construction material
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DE482634C
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Production of oils soluble in mineral hydrocarbons from castor oil
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DE483695C
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Preparations for the control of insects
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