Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 775,503
Change Speed Gear
Patentees:
Alfred Soames (exact or similar names) - Surrey, England
Walter Langdon-Davies (exact or similar names) - Surrey, England

USPTO Classifications:
70/245, 74/340, 74/345, 74/483R, 74/665GA

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine speed and direction changing mechanisms

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 18, 1904
Granted: Nov. 22, 1904

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Langdon-Davies Electric Motor Co.

Copyright © 2002-2024 - DATAMP