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Temperatures in Spark Plugs Having Steel and Brass Shells (1919)

NASA Technical Reports Server (NTRS) · leaf 7

An illustration from Temperatures in Spark Plugs Having Steel and Brass Shells, 1919, leaf 7
HALF-SECTION OF SPARKPLUG

NASA Technical Reports Server (NTRS)

Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.

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