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In the years following World War I, C-T-R's engineering and research staff developed new and improved mechanisms to meet the broadening needs of its customers.
In 1920, the company introduced the lock autograph recorder, the first complete school time control system, and launched the Electric Accounting Machine.
In 1921, the company acquired the business of the Ticketograph Company of Chicago, and certain patents and other property of the Peirce Accounting Machine Company.
The Carroll Rotary Press was developed in 1924 to produce cards at high speed, and punched card capacity was doubled. |
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The growth and extension of C-T-R's activities made the old name of the company too limited, and, on February 14, 1924, C-T-R's name was
formally changed to International Business Machines Corporation. By then, the company's business had expanded both geographically and functionally, including the completion of three
manufacturing facilities in Europe. |
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1920
printing tabulator |
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1923
first electric key punch |
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1926
Sesquicentennial Exposition
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1924
International Business Machines Corporation
(IBM) |
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1924
Quarter Century Club |
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1928
first public address and program signaling
systems |
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1929
Hammersmith (London), England
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