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BG97978A
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Method and equipment for the protection of road surfaces and the supporting structures of motorway viaducts
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BG96839A
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Chamber hangar door
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BG96436A
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Integral piston rings
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BG40706A1
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Method for tailoring of eternite sheets and device for performing this method
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BG39501A1
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Device for bending metal elements with large dimensions
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BG39369A1
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Method for manufacture of quartz capillary tubes
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BG41809A1
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Protective coating on graphite electrodes
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BG38329A1
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Electrode holder for arc furnace
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BG39641A1
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Machine for paraffining and wrapping enobled vines
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BG37902A1
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Method for preparing plasticizing additive for concrete
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BG39529A1
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Method for ion- exchange recovering of gold from waste waters
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BG36831A1
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Method for purifying waste- waters from methylmetacrylate production
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BG40080A1
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Method and device for elaborating of protective coating on graphite electric apparatus
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BG38342A1
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Machine for vine engrafting
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BG36780A1
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Contact head for electrode holders in electric arc furnaces
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BG33898A1
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A method for restoring beaten down cereals
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BG35833A1
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Composition of additive for concrete and cement solutions
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BG30332A1
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Rotary grafting machine for vine material
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BG31983A1
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Apparatus for producing of thin sheet profile elements
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BG35832A1
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Composition of additive for improving the properties of building materials and method for its preparing
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