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Patent number:
Patent Date:
US Patent: 743,033
Drill-grinding machine
Patentee:
Corneil Ridderhof (
exact
or
similar
names) - Grand Rapids, MI
USPTO Classifications:
451/155
Tool Categories:
metalworking machines
:
grinders
:
drill grinders
metalworking machines
:
grinders
:
sharpening machines
:
drill sharpening machines
Assignees:
Wilmarth & Morman Co.
- Grand Rapids, MI
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Jan. 08, 1903
Granted:
Nov. 03, 1903
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
This drill grinder is designed to use the standard flat disc-shaped grinding wheel rather than the more expensive and less common cup-shaped wheel. The design is an evolution of that of patent
643,703
.
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