low-voltage enclosed air circuit-breaker switchgear

1948 ◽  
Vol 67 (5) ◽  
pp. 475-475
Author(s):  
Leon H. Sperow ◽  
John A. Favre

1951 ◽  
Vol 70 (2) ◽  
pp. 104-104
Author(s):  
M. E. Horn ◽  
J. J. Mikos

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