| Business | Phone |
| I C Enterprises Inc 4246 2nd Ave, Detroit 48201 | (313) 832-3440 |
| Architectural Model Studios Detroit 48224 | (248) 584-3300 |
| Majestic Pattern Co 20400 Sherwood St, Detroit 48234 | (313) 892-5800 |
| B & B Pattern & Engineering 8600 Lyndon St, Detroit 48238 | (313) 834-0875 |