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Fig. 72.—Author’s Main Switch—Bent Spring Pattern.Electric Lighting for Marine Engineers (1892)
Fig. 72.—Author’s Main Switch—Bent Spring Pattern.
“Figs. 72 and 75 show the author’s form of large switch.”
Keywords: switches, electrics, diagrams, handles
Places shown: none
Added: 2006-10-06
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Image status: public domain, hence royalty-free stock image; usage credit requested
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