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US Patent: 332,249
Motor
Patentees:
Martin F. Graham (exact or similar names) - Springfield, Clark County, OH
Owen E. North (exact or similar names) - Springfield, Clark County, OH

USPTO Classifications:
415/202, 415/208.1, 415/211.1

Tool Categories:
propulsion and energy : air motors and turbines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Sep. 01, 1884
Granted: Dec. 15, 1885

Patent Pictures:
USPTO (New site tip)
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