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US Patent: 1,503,640
Internal Combustion Engine
Patentees:
Charles E. Curtiss (exact or similar names) - Cleveland Heights, Cuyahoga County, OH
Harry L. Allen (exact or similar names) - Cleveland, OH

USPTO Classifications:
123/41.31, 123/41.53, 123/41.77, 123/41.81

Tool Categories:

Assignees:
Bruce-Macbeth Engine Co. - Cleveland, OH

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Dec. 21, 1921
Granted: Aug. 05, 1924

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Bruce-Macbeth Engine Co.

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