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Patent number:
Patent Date:
US Patent: 77,819
Improvement in countersinks
Patentee:
Charles Krebs (
exact
or
similar
names) - West Springfield, MA
USPTO Classifications:
144/240
,
408/209
Tool Categories:
woodworking tools
:
hand drills
:
drill bits
:
countersinks
Assignees:
None
Manufacturer:
Charles Krebs
- West Springfield, MA
Witnesses:
J. P. Buckland
T. A. Curtis
Patent Dates:
Granted:
May 12, 1868
Patent Pictures: [
1
|
2
]
USPTO
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Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
The example shown in the second image is marked, "Krebs,May,12,1868".
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