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US Patent: 182,180
Improvement in injectors
Patentee: Isidore Dreyfus (exact or similar names) - New York, NY USPTO Classifications: 417/170 Tool Categories: propulsion and energy : steam apparatus : stationary boilers : feedwater apparatus Assignees: None Manufacturer: Nathan & Dreyfus - New York, NY Witnesses: Charles Judge G. A. Bischoff	Patent Dates: Applied: Jul. 07, 1876 Granted: Sep. 12, 1876 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Nathan & Dreyfus; Nathan Mfg. Co.

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