US Patent: 978,030 - Electric contact device


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US Patent: 978,030

Electric contact device

Patentee:

Arthur Atwater Kent (exact or similar names) - Philadelphia, PA

USPTO Classifications:

200/19.2

Tool Categories:

propulsion and energy : internal combustion engines : ignition systems

Assignees:

None

Manufacturer:

Atwater Kent Mfg. Works - Philadelphia, PA

Witnesses:

C. D. McVay

H. Stockwell Fairbanks

Patent Dates:
Applied:	Aug. 16, 1905
Granted:	Dec. 06, 1910

Patent Pictures:

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Description:

This patent date is listed on the label of an Atwater Kent "Type F Unisparker" ignition system seen in an ad in the April 1912 issue of Automobile Trade Journal, page 42.