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Patent number:
Patent Date:
US Patent: 1,360,368
Screw Driver
Screw holding screwdriver
Patentee:
George N. Coburn (
exact
or
similar
names) - Boston, MA
USPTO Classifications:
81/444
Tool Categories:
screwdrivers
:
screwdriver blades
specialty tools
:
screw starters
Assignees:
None
Manufacturer:
Unknown
Witnesses:
none listed
Patent Dates:
Applied:
Oct. 07, 1918
Granted:
Nov. 30, 1920
Patent Pictures: [
1
|
2
]
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Description:
Sample unmarked but identical to Patent drawing.
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