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US Patent: 737,298
Engine Indicator
Patentee:
Otto Tuch (exact or similar names) - Hamburg, Germany

USPTO Classifications:
346/4, 73/114.09

Tool Categories:
propulsion and energy : steam apparatus : steam engine indicators

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 12, 1902
Granted: Aug. 25, 1903

Patent Pictures:
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