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Patent number:
Patent Date:
US Patent: 190,869
Improvement in Screwdriver Handles
Patentee:
Edward A. Johnson (
exact
or
similar
names) - East Haven, CT
USPTO Classifications:
16/430
,
16/DIG12
,
81/489
Tool Categories:
screwdrivers
Assignees:
Edward A. Johnson
- East Haven, CT
John J. Tower
- Brooklyn, NY
Manufacturer:
Tower & Lyon
- New York, NY
Witnesses:
Dwight W. Tuttle
S. W. F. Andrews
Patent Dates:
Applied:
Apr. 20, 1877
Granted:
May 15, 1877
Patent Pictures: [
1
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4
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Description:
Fluted screwdriver handle to prevent its slipping in the hand. Found on Champion screwdrivers.
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