Dashew worked alongside Joseph P. Williams , then Vice President of Bank of America .
Dashew introduced the Databosser , which embossed numbers read from an IBM punch card onto a credit card , originally aluminum alloy , then plastic .
Working alongside Joseph P. Williams , then Vice President of Bank of America , Dashew introduced the Databosser , which embossed numbers read from an IBM punch card onto a credit card , originally aluminum alloy , then plastic .