Table of Contents
Patent XC-853: 1858-07-13, Instrument, called Cole's Gravitating Plumb and Level
Comments
Information Sources
External links
Patent XC-853: 1858-07-13, Instrument, called Cole's Gravitating Plumb and Level
X Number
Date
Inventor
City
Title
XC-853
1858-07-13
A. N. Cole
Brockville, ON Canada
Instrument, called Cole's Gravitating Plumb and Level
Comments
XC patents are Canadian patents issued between 1824 and 1869.
Information Sources
(To be filled in.)
External links