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United States Utility Patents
4,956,040 - 4,956,049

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NumberTitle
4,956,040 Method of adhering holograms to textile wearing apparel
4,956,041 Method of lining branch pipe portion of underground main pipe with rigid plastics tube
4,956,042 Process and apparatus for embrittling and subsequently removing an outer protective coating of a pipe or pipeline
4,956,043 Dry etching apparatus
4,956,044 Tab surface-protective paper separating device
4,956,045 Hand-held labeler
4,956,046 Semiconductor substrate treating method
4,956,047 Process of making high quality single quartz crystal using silica glass nutrient
4,956,048 Method of alcohol washing brownstock pulp prior to a chlorination bleaching stage
4,956,049 Process for sizing paper with anionic hydrophobic sizing agents and cationic retention aids



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