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US Patent: 70,784
Steam Balanced Valve Improvement in Slide Valves
Patentee: E. H. Bellows (exact or similar names) - Worcester, Worcester County, MA USPTO Classifications: 251/324 Tool Categories: propulsion and energy : steam engines : steam engine valves Assignees: None Manufacturer: Bellows & Whitcomb - Worcester, Worcester County, MA Witnesses: Thomas H. Dodge D. L. Miller	Patent Dates: Granted: Nov. 12, 1867 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Bellows & Whitcomb

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