Aero-ferric Magnetic Circuit
Hawkins' Electrical Dictionary · 1915 · p. 3
—A magnetic circuit having its course completed through both air and iron; an open iron magnetic circuit.
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Ferric Magnetic Circuit
—
Hawkins' Electrical Dictionary (1915)
Aero
—
All the World's Aircraft (1913)
aero-
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Appleton's Medical Dictionary (1913)
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