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

Quick search:	Patent number:	Patent Date:

US Patent: 101,832
Improvement in pressure-gauges
Patentee: Herman Chwatal (exact or similar names) - New York, NY USPTO Classifications: 73/715 Tool Categories: propulsion and energy : steam apparatus : stationary boilers : steam pressure gauges Assignees: Ludolf Portong - Brooklyn, NY W. Staehlen - Unknown, NY Manufacturer: Ludolf Portong - Brooklyn, NY Witnesses: J. Rosengans A. Bressie	Patent Dates: Granted: Apr. 12, 1870 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Ludolf Portong
Description: The 1870 Brooklyn City Directory has a listing for "Portong Ludolf, steamgauges, 21 Dunham pl. h Lorimer n Montrose av".

Copyright © 2002-2024 - DATAMP