US Patent: 2,464,156
|
| Expanding Chuck or Mandrel
|
|
Patentees:
|
| Gerald L. Sandersen (exact or similar names) - Essex, Middlesex County, CT |
| Karl K. Nielsen (exact or similar names) - Essex, Middlesex County, CT |
| Colin Campbell (exact or similar names) - Essex, Middlesex County, CT |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 20, 1946 |
| Granted: |
Mar. 08, 1949 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Joel Havens
|