death_date birth_date article_title significant_projects name
17 april 1996 25 august 1910 arnold neustadter
 rolodex arnold neustadter
arnold neustadter

arnold neustadter -lrb- 25 august 1910 -- 17 april 1996 -rrb- was an american inventor and businessman .
with danish engineer hildaur neilson , he invented the rolodex desktop rotating card file and other office equipment .
his earlier inventions included the `` autodex '' , a spring-operated phone directory that automatically opened to the selected letter , `` swivodex '' , an inkwell that did not spill , `` punchodex '' , a paper hole puncher , and `` clipodex '' , a transcription aid that attached to a stenographer 's knee .
the rolodex has been called `` a triumph of low technology '' and `` a lasting symbol of the art of networking '' .
