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| Switch Wizard | |
| CGE | ||
| State Tool and Manufacturing | ||
| Schurter Inc. | ||
| Hubbell / Raco 3902 West Sample Street - P.O. Box 4002 - South Bend, IN 46634-4002 USA - | ||
| Therm O-Disc, Inc. | ||
| Leach International | ||
| GAMA Electronics, Inc. | ||
| Oak Grigsby | ||
| Hakuto America (formerly Shigma, Inc.) | ||
| Siemens AG - - - | ||
| Highly Electric Company | ||
| Elma Electronics | ||
| Judco Manufacturing | ||
| Shogyo International Corp | ||
| Arcolectric Corporation | ||
| Carlingswitch | ||
| Gaynor Electric Co. | ||
| DNA Group, Inc. | ||
| Cherry Corporation | ||
| Alectron | ||
| Thomas & Betts (T&B) / Augat / Alcoswitch | ||
| Honeywell Sensing and Control | ||
| Carlo Gavazzi / Dupline | ||
| Lamb Industries Inc. | ||
| Cole Hersee Co. | ||
| Switch Channel | ||
| Apem Components, Inc. | ||
| Preh Electronics, Inc. | ||
| C&K Components | ||
| Advance Controls, Inc. | ||
| Otto Engineering, Otto Controls Div. | ||
| Grayhill | ||
| CW Industries | ||
| Marquardt Switches | ||
| Square D - North American Division of Schneider Electric 1415 South Roselle Road - Palatine, IL 60067 USA - - | ||
| ITT Industries Cannon Connectors / ITT Cannon RF Products 666 East Dyer Road - Santa Ana, CA 92702 USA - - | ||
| McGill Electrical Product Group | ||
| Gardner Bender - - - | ||
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