US Patent: 363,025
|
| Parallel Ruler for Sign Writers
|
|
Patentee:
|
|
| Albert J. Walker (exact or similar names) - Sheldon, Vernon County, MO |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 21, 1887 |
| Granted: |
May 17, 1887 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
|
|
Description: |
| Claim:
In a parallel-ruler, the combination of the inner frame, a series of bars sliding upon the opposite parallel portions of the said frame, and an outer frame, and thumbscrews for clamping the sliding bars in any desired position. |
|
