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| COOKE Corporation | |
| Anritsu | ||
| AHEAD Optoelectronics, Inc. | ||
| Dazor Lighting | ||
| Roper Scientific / Acton Research | ||
| Leica 111 Deerlake Road - Deerfield, IL 60015 USA - - | ||
| Oriel Corporation | ||
| Bauer Associates | ||
| Small Parts, Inc. | ||
| Luxo/Ledu P.O.Box 60 Manglerud - Enebakkveien 117 - Oslo, N-0612 Norway - | ||
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