US Patent: 1,283,740
|
Drill
|
Patentee:
|
|
Clarence B. Groff (exact or similar names) - Camden, NJ |
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
Apr. 04, 1910 |
Granted: |
Nov. 05, 1918 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Joel Havens
|
Description: |
Wiedershein & Fairbanks - patent attorneys
Appliication renewed 27 Dec. 1917. |
|