Category:Hawkins Electrical Guide, Number 5

Media in category "Hawkins Electrical Guide, Number 5"

The following 2 files are in this category, out of 2 total.

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  Hawkins electrical guide. Questions, answers and illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and (14579907187).jpg 1,298 × 1,282; 107 KB
  
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  Mercury arc rectifier bulb.jpg 418 × 739; 116 KB