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United States Utility Patents
4,198,360 - 4,198,369

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NumberTitle
4,198,360 Apparatus for heat-mass exchange processes with participation of liquid
4,198,361 Film-type rotary mass-and-heat exchange column
4,198,362 Method and apparatus for molding and replicating minute surface characteristics
4,198,363 Continuous extrusion of thermoplastic materials
4,198,364 Printing matrix or mold component formed from an aminoplast resin-polyvinyl alcohol reaction product
4,198,365 Method of applying product bags in aerosol barrier packages
4,198,366 Method of multi-sheet pleating
4,198,367 Method and apparatus for producing retreading envelopes
4,198,368 Valve
4,198,369 Process for lining container caps



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