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US Patent: 689,640
Steam Engine Indicator
Patentee: John Clark Dobbie (exact or similar names) - Glasgow, Scotland USPTO Classifications: 346/5 Tool Categories: propulsion and energy : steam apparatus : steam engine indicators Assignees: None Manufacturer: Dobbie-McInnes, Ltd. - Glasgow, Scotland Witnesses: Wallace Fairweather John Armstrong, Jr. J. C. Lebret A. Witt	Patent Dates: Applied: Dec. 10, 1898 Granted: Dec. 24, 1901 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Dobbie-McInnes, Ltd.

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