- Allen Bradley
- Fanuc
- Glentek
- Indramat
- Powr Ups
- BEI
- Banner
- Heidenhain
- Emerson
- Dynapar
- Advanced Controls
- ASEA
- Barber Coleman
- Digital Equip. Corp
- Dynamics Research
- Heald
- Kollmorgan
- Parametrics
- Renco
- Streeter
- Tektronix
- Vickers
- West
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- Eagle Signal
- Yaskawa
- Integrated Power
- Metra
- Valeron
- Siemens
- Oriental
- Lambda
- Badger
- Tamagawa Seiki
- Bendix
- Berthold
- Fairchild
- Friden
- Leeds & Northrup
- Philips
- Singer-Kearfott
- Sundstrand
- Trallfa
- Wang
- Westamp
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- Fuji
- Balluff
- Cincinnati Milacron
- Hitachi
- Okuma
- Gettys
- Magnetek
- Toshiba
- Fincor
- Gould-Modicon
- Bridgeport
- B&K/Dynascan
- Giddings & Lewis
- Honeywell
- Remex
- Slo-Syn
- Talley
- Trump-Ross
- Westinghouse
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- Cleveland Machine
- Micron
- Baldor
- G.E.
- Warner Swasey
- Mitsubishi
- Hewlett Packard
- Foxboro
- Cutler Hammer
- Reliance
- Contraves
- Data Metrics
- Harowe
- Kearney & Trecker
- Lilton Ind.
- Square D
- Texas Instruments
- Unimation
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