If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
|
53,477
|
Sep. 14, 1896
|
Steam engine
|
Joseph Hardill |
ON, Canada |
The patentee/owner names and locations came from the September 1896 issue of The Canadian Patent Office Record. The patent specification itself names only Hardill as the inventor, which means that the others were assignees, and we assumed that Hardill had a share of ownership as well. |
|
58,684
|
Jan. 13, 1898
|
Steam engine
|
Joseph Hardill |
ON, Canada |
|
|
641,103
|
Jan. 09, 1900
|
Compound steam-engine
|
Joseph Hardill |
ON, Canada |
|
|
76,662
|
Jul. 15, 1902
|
Steam engine
|
Joseph Hardill |
ON, Canada |
|
|
76,663
|
Jul. 15, 1902
|
Steam engine governor
|
Joseph Hardill |
ON, Canada |
|
|
76,664
|
Jul. 15, 1902
|
Steam engine governor
|
Joseph Hardill |
ON, Canada |
|
|
728,707
|
May. 19, 1903
|
Engine Governor
|
Joseph Hardill |
ON,, Canada |
|