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Spark Plug Defects and Tests (1920)
NASA Technical Reports Server (NTRS) · leaf 13
CROSS SECTIONS OF TYPICAL SPARK PLUGS 119, Bethlehem (de luxe). 113, A. 0. F. 108, Herz. 120, Splitdorf. in, Mlnogue. 109, Fert. 121, Buffy (3-pieee). 115, Anderson. 110, R.eV. 123, Bnfly (air line). 116, Bethlehem. in. Pognon. 124, Bosch (German) 117, Bugatti. 112, Joly. 118, Titan. 10—3NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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