Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 50,320
Improvement in cut-off valves
Patentee:
James M. Albertson (exact or similar names) - New London, CT

USPTO Classifications:
91/274, 91/443, 91/445

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. T. Brown
Thomas Drummond
Patent Dates:
Granted: Oct. 10, 1865

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Albertson & Douglass Machine Co.
Description:
This valve is for a steam engine.

Copyright © 2002-2025 - DATAMP