| Business | Phone |
| Bob's A-1 Cash Register 1554 Market St, San Francisco 94102 | (415) 621-2841 |
| Cash Point Systems San Francisco 94105 | (415) 725-2274 |
| Eccr Sales Po Box 881922, San Francisco 94188 | (415) 550-7662 |
| Krutman Electronic Systems Inc 1230 Howard St, San Francisco 94103 | (415) 626-5088 |