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US Patent: 889,432
Spark-plug
Patentee:
George J. Blum (exact or similar names) - Chicago, IL

USPTO Classifications:
123/154

Tool Categories:
propulsion and energy : internal combustion engines : ignition systems : spark plugs

Assignees:
Armstrong-Blum Mfg. Co. - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
George L. Chindahl
M. M. Daley

Patent Dates:
Applied: Feb. 07, 1906
Granted: Jun. 02, 1908

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Armstrong-Blum Mfg Co.
Description:
This spark plug has integrated points.

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