miércoles, enero 11, 2006

Inventos de personas negras

Esto me lo envio Mariano Abreu.
Me encuentro pequeña la lista.

Unidad de aire acondicionado Frederick M. Jones July 12, 1949
Almanaque Benjamin Banneker Approx 1791
Auto cut-off switch Granville T. Woods January 1, 1839
Auto fishing device G. Cook May 30, 1899
Automatic gear shift Richard Spikes February 28, 1932
Cargador de bebes W.H. Richardson June 18, 1899
Cuadro de bicicleta L.R. Johnson October 10, 1899
Biscuit cutter A.P. Ashbourne November 30, 1875
Funda de plasma para sangre Charles Drew Approx. 1945
Telefono Celular Henry T. Sampson July 6, 1971
Cómoda de alcoba T. Elkins January 3, 1897
Secador de ropa. G. T. Sampson June 6, 1862
Palo de cortina S. R. Scratton November 30, 1889
Porta palo de cortina William S. Grant August 4, 1896
Cerradura de puerta O. Dorsey December 10, 1878
Para puerta O. Dorsey December 10, 1878
Envase de polvos Lawrence P. Ray August 3, 1897
Batidor de huevos Willie Johnson February 5, 1884
Bomiblla electrica para lampara Lewis Latimer March 21, 1882
Elevador Alexander Miles October 11, 1867
protector de ojos P. Johnson November 2, 1880
Escalera contarincendios J. W. Winters May 7, 1878
Extintor de fuegos T. Marshall October 26, 1872
Cama Sandwich L. C. Bailey July 18, 1899
Silla plegable Brody & Surgwar June 11, 1889
Pluma Fuente W. B. Purvis January 7, 1890
Porta muebles O. A. Fisher 1878
Mascara anti gases Garrett Morgan October 13, 1914
Tee de golf T. Grant December 12, 1899
Guitarra Robert F. Flemming, Jr. March 3, 1886
Cepillo de pelo Lydia O. Newman November 15, 18--
Sello de mano Walter B. Purvis February 27 1883
Herradura J. Ricks March 30, 1885
Cuchara para helados A. L. Cralle February 2, 1897
Maquina de hacer azucar Norbet Rillieux December 10, 1846
Pistola anti insectos A. C. Richard February 28, 1899
Tabla para planchar Sarah Boone December 30, 1887
Llavero F. J. Loudin January 9, 1894
Linterna Michael C. Harvey August 19, 1884
Maquina cortagrama L. A. Burr May 19, 1889
Reguilete de jardin J. W. Smith May 4, 1897
Exprimidor de limones J. Thomas White December 8, 1893
Cierre W. A. Martin July 23, 18--
Aceitadora Ellijah McCoy November 15, 1895
Bandeja para almorzar James Robinson 1887
Buzon Paul L. Downing October 27, 1891
Mapo Thomas W. Stewart June 11, 1893
Motor Frederick M. Jones June 27, 1939
Mantequilla de mani George Washington Carver 1896
Saca Puntas J. L. Love November 23, 1897
Trasnsmisor de telefono Granville T. Woods December 2, 1884
Brazo del tocadiscos Joseph Hunger Dickenson January 8, 1819
refrigerador J. Standard June 14, 1891
riding saddles W. D. Davis October 6, 1895
rolling pin John W. Reed 1864
shampoo C. O. Bailiff October 11, 1898
Bujía de chispa Edmond Berger February 2, 1839
Estetoscopio Imhotep Ancient Egypt
Estufa T. A. Carrington July 25, 1876
Peine para alisado Madam C. J. Walker Approx 1905
Barredor r de calle Charles B. Brooks March 17, 1890
Control de Termostato Frederick M. Jones February 23, 1960
Semáforo Garrett Morgan November 20, 1923
Triciclo M. A. Cherry May 6, 1886
Maquina de escribir Burridge & Marshman April 7, 1885


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