Synthetic Products Mfg. Co.
By Elton Gish; posted January 29, 2020
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In 1973, Reliable Electric Co. asked Synthetic Products Mfg. Co. to make two pin-type styles and later bought SPMCo in 1974. |
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In 1973, Reliable Electric Co. asked Synthetic Products Mfg. Co. to make two pin-type styles and later bought SPMCo in 1974. |