American galvanic company Howard galvanic shield, electric appliance, Denver. E.M.News.Jnly 1,1882 p.8 c.4 Credit for inventing Howard-galvanic shield, Denver. 8,A*.News.Aug I731882 p.1 c.'3 Appliances described, business, "Onver: &M.News. New Yrs. Ed. Jan.18$1 p.17 -c.4 Advertises medical electrical appliance, Denver. R.M.News.Oct.1,1881 p.1 c.5 Fakers of Howard galvanic shield, Denver. R.M.News.July 30,1882 p.2 c.6 Manufactures galvanic shield. R.M.News. Jan.1,1883 p.7 c.7 I* i
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