DD291013A5
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Glass filter and method for its manufacture
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DD292645A5
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Method for the production of microfiner sphaeric glass particles and microfins spray glass particles
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DD288820A5
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Device for distortioning and separating glass thicknesses in fine glass fibers
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DD284465A5
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SPRAY OPEN-POREy FOAM GLASS GRANALIA AND METHOD FOR THE PRODUCTION THEREOF
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DD282675A5
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Solarization stabilized high index microglass balls and method for their production
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DD276678A1
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Method for determining the strength of hollowing microglass balls
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DD276276A1
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Sphaeric, particular dispensing, filling and supplemental material from glass and method for the production thereof
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DD276275A1
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Open-purpose foamed glass and method for the production thereof
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DD275731A1
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Method of measuring glass stands in glass melt aggregates
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DD272834A1
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Method for producing holy spaser glass particles
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DD271650A1
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Method for producing a catalyst vehicle for exhaust catalysts
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DD269700A1
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Electronic setpoint
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DD290869A5
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Macroporoesic glass covers and method of manufacturing them
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DD290870A5
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Sphere glass particles with high lightning power and method for the production thereof
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DD260660A1
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Catalyst supplier for catalysts and method for the production thereof
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DD261592A1
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Process for producing transparent high index microglass balls
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DD261593A1
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Poroese fine glass fibers and method for their production
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DD255842A3
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Textile fluid sheets from fiberglass fabrics as layering material
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DD255885A1
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Process for phase separation in sphaeric glass particles
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DD250258A1
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Openporish formstable glass body
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