W. S. HADAWAY, JR.
APPLIOATION FILED NOV. 20, 1909.
Patented Aug. 27,1912.
box. and a plurality of interchangeable metal-clad resistance units clamped between th rods,
clamped between the rods, each of said units comprising a loop of resistance ribbon, a metal covering therefor and insulation disposed bet-Ween said ribbon and said cover.
In testimony whereof, I have hereunto subscribed my name this 2nd day of Nov.. 1909.
WILLIAB I S. HADAWAY, J R.
Witnesses MARY YOUNG, B. B. HINES.
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Washington, D. G.