US Patent: 196,354 - Improvement in Combined File and Screwdriver


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US Patent: 196,354

Improvement in Combined File and Screwdriver

Patentee:

Samuel Harris (exact or similar names) - Boston, MA

USPTO Classifications:

279/76, 30/162, 7/165, 7/167

Tool Categories:

combination tools

metalworking tools : files

screwdrivers

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Henry W. Williams

B. W. Williams

Patent Dates:
Applied:	Apr. 30, 1877
Granted:	Oct. 23, 1877

Patent Pictures:

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Description:

File on one end and a screwdriver blade on the second. A pin with a spring locks the selected tool in position by engaging the appropriate hole on the on the blade when the desired tool is slid into position.