| |
|
Inventor: Donovan; William J.
Address: Franklin, PA
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 3937517 |
Protective canopy |
February 10, 1976 |
| An underground mining apparatus and more particularly an underground mining apparatus having improved protective canopy means extending partially thereover. |
|
|
|