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| AHEAD Optoelectronics, Inc. |   | |
| Axsys Technologies, Inc. |   | ||
| Burleigh Instruments, Inc. |   | ||
| COOKE Corporation |   | ||
| Heussner Optics, Inc. |   | ||
| ADE Phase Shift |   | ||
| ADE Phase Shift |   | ||
| Renishaw Inc. |   | ||
| Teletrac Corporation |   | ||
| Veeco |   | ||
| Zygo Corporation |   | ||
| Alameda Applied Sciences Corporation - AASC 2235 Polvorosa Ave. - Suite #230 - San Leandro, CA 94577 USA |   | ||
| Precision-Optical Engineering Wilbury Way - Hitchin - Hetrfordshire, SG4 OTP UK |   | ||
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