Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 520,447
Clutch
Patentees:
Thomas F. Carver - Worcester, MA
Michael F. McMahon - Worcester, MA

USPTO Classifications:
192/48.5, 192/53.5

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine clutches

Assignees:
Michael F. McMahon - Worcester, MA

Manufacturer:
Not known to have been produced

Witnesses:
Ella P. Blenus
Charles H. Burleigh

Patent Dates:
Applied: Sep. 11, 1893
Granted: May 29, 1894

Patent Pictures:
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for McMahon & Carver

Copyright © 2002-2019 - DATAMP