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US Patent: 928,394
Rheostat
Patentees:
Charles R. Meston - St. Louis, MO
Herbert I. Finch - St. Louis, MO

USPTO Classifications:
338/205, 338/301, 338/58

Tool Categories:
electrical devices

Assignees:
Emerson Electric Manufacturing Co. - St. Louis, MO

Manufacturer:
Emerson Electric Manufacturing Co. - St. Louis, MO

Witnesses:
F. R. Cornwall
Lenore Clark

Patent Dates:
Applied: Apr. 23, 1909
Granted: Jul. 20, 1909

Patent Pictures:
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