US Patent: 42,012
|
| Paper-Ruler
|
|
Patentee:
|
|
| David Munson (exact or similar names) - Indianapolis, IN |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Mar. 22, 1864 |
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Ralph Brendler
|
|
Description: |
|
This is a simple ruler of stamped sheet metal, with a roller to allow
it to mark parallel lines or be used as a straightedge for tearing strips.
|
|