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James L. Ableman Patents |
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Inventor: Ableman; James L.
Address: Corvallis, OR
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6371687 |
Method and apparatus for leveling manhole cover frames |
April 16, 2002 |
| A manhole cover frame leveling clip, that attaches by a friction fit to the exterior peripheral flange of a manhole cover frame, and uses an adjustable bolt running through the clip, to manipulate the height and angle of the frame so that the frame is in the same plane or the correct |
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