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US Patent: 1,263,639
Reversible Rotary Motor
Patentee:
George A. Bertsch (exact or similar names) - Providence, RI

USPTO Classifications:
418/226, 418/5

Tool Categories:
propulsion and energy : steam apparatus : rotary steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Nov. 16, 1915
Granted: Apr. 23, 1918

Patent Pictures:
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