US Patent: 144,187
|
Improvement in machines for cutting the heads of fence-pickets
|
Patentee:
|
|
Andrew Burnham (exact or similar names) - Revere, MA |
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
May 24, 1873 |
Granted: |
Nov. 04, 1873 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Jeff Joslin
|
Description: |
This machine forms the tops of fence-pickets into a Gothic arch shape, using a vibrating knife that travels through a circular arc. |
|