US Patent: 680,830
|
Square
|
Patentee:
|
|
James A. Wray (exact or similar names) - Chicago, IL |
Manufacturer: |
Not known to have been produced |
|
Patent Dates:
|
Applied: |
Jul. 05, 1900 |
Granted: |
Aug. 20, 1901 |
Patent Pictures:
[
1 | 2
]
|
|
|
USPTO (New site tip) Google Patents
Report data errors or omissions to steward
Russ Allen.
|
Description: |
Tongue and groove arrangement with a cut out screw to secure the pieces together. |
|