Main circuit breaker

Equipment for production – distribution – or transformation of ene – Distribution – modification or control – Switch or casing therefor

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D03170047

REFERENCES:
patent: D221953 (1971-09-01), Zecca
patent: D246851 (1978-01-01), Tarchalski et al.
patent: 2922004 (1960-01-01), Miller et al.
patent: 3098902 (1963-07-01), Meyer
Breaker on p. 3 of FPE Catalog, 9-63.
Federal Pacific 2 Pole Main Breaker on p. 94 of Bennett Brass and Copper Catalog, 1987.

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