Letters Patent Granted to John Harper for Invention of Improvements in Pillars and Hydraulics for Straining Wire
AssociatedAssociated with
Harper and Company
(Aberdeen, founded 1857)
InventorInvented by
John Harper Sr.
(1823 - 1906)
Date1863
Object NameLetter Patent
MediumParchment
ClassificationsEngineering
Dimensions53.7 x 77cm
AcquisitionPresented in 2006.
LocationView by Appointment - Aberdeen Treasure Hub
Object numberABDMS078041
Keywords
John Harper Sr.
John Harper Sr.
John Harper Sr.
Louis Harper
William McKinnon and Company Limited
1905
Louis Harper