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- 01
- June 1986 PMC Supplement Plant News.
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- The Rockford Tool Company.
- A Woodward Prime Mover Control Plant News History Project.
- A Woodward Prime Mover Control Plant News History Project.
- THE BARBER-COLMAN COMPANY HISTORY.
- A Rockford machine shop manufacturing history project.
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- Made In Rockford.
- March 1985 Plant News.
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