Editing Comptometer (section)

==Companies and trademarks==
[[Image:Animation of Comptometer Pins.gif|thumb|right|<div align="center">Comptometer Pins</div>]]

===Felt & Tarrant Manufacturing Company===
Felt and Tarrant signed a partnership contract on November 28, 1887. The partnership was incorporated as ''the Felt & Tarrant Manufacturing Company'' on January 25, 1889.<ref>Turck J.A.V., ''Origin of Modern Calculating Machines'', page 75, Arno Press, 1972, reprint of 1921</ref> The firm often used the abbreviation ''Felt & Tarrant Mfg Co'' in their logo on both their machines as well as in print, with the [[ampersand]] chosen over the word ''"and"'' as part of their official corporate name.

===Comptograph Company===
In 1902, Felt and Tarrant parted ways in creating a second company and decided to split the shares of both companies so that one would own the controlling interest of a company with 51% of the shares and the other would still share the profits with the remaining 49% of the shares. Felt became the majority owner of the Felt & Tarrant Manufacturing Company and Tarrant became the majority owner of the Comptograph Company.<ref>Darby E.,''It all adds up'', page 120, Victor Comptometer Corporation,1968</ref>  The Felt & Tarrant Manufacturing Company reabsorbed the Comptograph company at the beginning of World War&nbsp;I.

===Comptometer Corporation===
The ''Felt & Tarrant Mfg Co'' became public in 1947 and changed its name to ''the Comptometer Corporation'' in 1957.<ref>Darby E.,''It all adds up'', page 112, Victor Comptometer Corporation,1968</ref>

===Bell Punch Company – Sumlock Comptometer Ltd===
In 1960,<ref>Darby E., ''It all adds up'', page 125, Victor Comptometer Corporation, 1968</ref> the [[Bell Punch|Bell Punch Company]] bought the British rights to the Comptometer design and trademark, and continued its development. In 1961, Sumlock, a division of the Bell Punch Company, was renamed ''The Sumlock Comptometer Ltd'' and began marketing the first all-electronic desktop calculator, the ANITA Mark VII. The entire calculator division of the Bell Punch Company was bought by [[Rockwell International]] in 1973. They exited the calculator business in 1976 and shut down all operations.

===Victor Comptometer Corporation===
In 1961, the Comptometer Corporation merged with the Victor Adding Machine Company, and the two became ''the Victor Comptometer Corporation''. After barely surviving the microprocessor revolution, it is still doing business today as [[Victor Technology]] LLC.