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D & H Industries, Inc. Patents |
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Assignee: D & H Industries, Inc.
Address: Oxon Hill, MD
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 3939599 |
Polishing device |
February 24, 1976 |
| A tooth polishing device wherein a polishing tool is secured to a power drive assembly and the power drive assembly is pivotably mounted in a casing for rotational movement within the casing. A power supply means includes a switch and is coupled to the power drive assembly for supplying |
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