Home| FAQ	Search:Advanced|Person|Company| Type|Class	Login

Quick search:	Patent number:	Patent Date:

US Patent: 471,383
Duplex Pressure Gage
Patentee: Frank H. Haskell (exact or similar names) - Revere, Suffolk County, MA USPTO Classifications: 73/736 Tool Categories: gauges : vacuum and pressure gauges Assignees: None Manufacturer: American Steam Gauge & Valve Mfg. Co. - Boston, Suffolk County, MA Witnesses: N. C. Lombard Walter E. Lombard George A. Sewall	Patent Dates: Applied: May 09, 1891 Granted: Mar. 22, 1892 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for American Steam Gauge Co.

Copyright © 2002-2024 - DATAMP