An improved wide-range adjustable-speed drive

1954 ◽  
Vol 73 (12) ◽  
pp. 1089-1091
Author(s):  
A. G. Conrad ◽  
A. R. Perrins ◽  
R. R. Shank
1950 ◽  
Vol 69 (2) ◽  
pp. 108-108
Author(s):  
A. G. Conrad ◽  
E. R. Tribken

2015 ◽  
Vol 9 (2) ◽  
pp. 107-116 ◽  
Author(s):  
Shao‐Kai Tseng ◽  
Chih‐Chien Tseng ◽  
Tian‐Hua Liu ◽  
Jui‐Ling Chen

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