Sparkler Filters [1] in Conroe, TX is still using an IBM 402 for daily operations and bookkeeping. [1] http://ibm-1401.info/402.html#SparkleFilters http://ibm-

Sparkler Filters [1] in Conroe, TX is still using an IBM 402 for daily operations and bookkeeping. [1] http://ibm-1401.info/402.html#SparkleFilters http://ibm-1401.info/402.html#SparkleFilters https://www.youtube.com/watch?v=pxCZ35y3O04 https://www.youtube.com/watch?v=pxCZ35y3O04