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Unión angular para marcos de carpintería metálica, caracterizada por comprender una pieza en escuadra, cuyos paletones se introducen ajustadamente en los huecos de los perfiles a reunir, estando cada uno de dichos paletones provistos de unas ranuras o rebajos que presenten, al menos, un plano inclinado cuya prolongación ideal es convergente con respecto al otro paletón.
ES0183593U1972-08-311972-08-31Unión angular para marcos de carpintería metálica
PendingES183593U
(es)
Analogifremgangsmåde til fremstilling af derivater af dibenzo-/a,d/-cycloheptatrien eller dibenzo-/a,d/-cycloheptadien eller deres metalsalte eller additionssalte med nitrogenholdige baser.