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facebooker_1225574800835253's profile
Joined about over 8 years ago.
facebooker_1225574800835253's timelines
teoría atómica
Estetóscopio
Barco de vapor
Electromagneto
Termoelectricidad
cerilla
locomotora de vapor
motor de corriente directa
Máquina de coser (Primera)
Telégrafo
termostato
Lámpara o bombilla incandescente
Grapadora
Radiación ultravioleta
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