Tabulador (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Tabulador" in Catalan language version.

refsWebsite

Global rank Catalan rank

1,459^th place

826^th place

low place

1^st place

low place

jwz.org

Fredric W. Hillard, Type-writing machine, Tabulador a l'USPTO (anglès), granted Feb. 10, 1903.
Harry S. Dukes and William H. Clayton, Tabulating mechanism for type-writing machines, Tabulador a l'USPTO (anglès), granted Dec. 29, 1908.
Edward B. Hess, Writing Machine, Tabulador a l'USPTO (anglès), granted Aug. 17. 1909.

«Underwood Portable Typewriter Gallery». Arxivat de l'original el 2011-02-22. [Consulta: 9 abril 2011]. Arxivat 2011-02-22 a Wayback Machine.