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US Patent: 420,887
Escape-valve for dash-pots
Patentee: Franklin Phillips (exact or similar names) - Newark, NJ USPTO Classifications: 137/533, 188/282.1 Tool Categories: Assignees: Hewes & Phillips Iron Works - Newark, NJ Manufacturer: Not known to have been produced Witnesses: James A. Thomson Thomas S. Crane	Patent Dates: Applied: Nov. 24, 1888 Granted: Feb. 04, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hewes & Phillips

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