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Patent number:
Patent Date:
US Patent: 422,546
Die for Making Bits
Patentee:
James Swan (
exact
or
similar
names) - Seymour, CT
USPTO Classifications:
72/475
Tool Categories:
tool making
:
making drills and augers
woodworking tools
:
hand drills
:
gimlets
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Gustav E. Tiedemann
Henry C. Schneider
Patent Dates:
Applied:
Dec. 04, 1889
Granted:
Mar. 04, 1890
Patent Pictures: [
1
|
2
]
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