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LOCK STRUCTURE FOR DOORS AND WINDOWS

LOCK STRUCTURE FOR DOORS AND WINDOWS

by NYITRAI,ISTVAN,HU, NYITRAI,ANDRAS,HU
Year of Publication 29.07.1991

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Patent

LOCK FOR DOORS AND WINDOWS

LOCK FOR DOORS AND WINDOWS

by NYITRAI,ISTVAN,HU, NYITRAI,ANDRAS,HU
Year of Publication 29.08.1988

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Patent

COMBINED SHAFT-ROTARY SHAFT FURNACE

COMBINED SHAFT-ROTARY SHAFT FURNACE

by NYITRAI,ISTVAN,HU, NYITRAI,ANDRAS,HU
Year of Publication 28.11.1986

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Patent

WIND-MOTOR

WIND-MOTOR

by NYITRAI ISTVAN, NYITRAY ISTVAN, NYITRAI KAROLY, NYITRAI ANDRAS, NYITRAI ATTILA
Year of Publication 28.03.2003

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Patent