US Patent: 191,304
|
Improvement in wire screws and nuts
|
Patentee:
|
|
John T. Bruen (exact or similar names) - Brooklyn, NY |
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
Apr. 02, 1877 |
Granted: |
May 29, 1877 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
George Langford
|
Description: |
Describes how to twist wires together to form the shaft of an Archimedean device and than fit a nut to it. |
|