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The ornamental design for a dental handpiece wrench, substantially as shown and described. |
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FIG. 1 is a top plan view of a dental handpiece wrench, the bottom and side elevational views thereof being of similar appearance;
FIG. 2 is a front elevation thereof; and
FIG. 3 is a rear elevation thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 03 1980 | American Hospital Supply Corp. | (assignment on the face of the patent) | / | |||
| Aug 31 1982 | AMERICAN HOSPITAL SUPPLY CORPORATION A CORP OF ILL | SYBRON CORPORATION, A CORP OF N Y | ASSIGNMENT OF ASSIGNORS INTEREST | 004051 | /0902 | |
| Jul 31 1986 | SYBRON CORPORATION, A CORP OF NY | Nalge Company | ASSIGNMENT OF ASSIGNORS INTEREST | 004628 | /0848 | |
| Dec 16 1987 | NALGE COMPANY A DE CORP | MIDWEST DENTAL CORPORATION, A DE CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004818 | /0867 | |
| Dec 18 1987 | MIDWEST DENTAL CORPORATION | LAKE SHORE NATIONAL BANK, 605 NORTH MICHIGAN AVENUE, CHICAGO, ILLINOIS 60611 | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 004816 | /0449 | |
| Aug 29 1990 | LAKE SHORE NATIONAL BANK | Midwest Dental Products Corporation | RELEASED BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 005458 | /0604 | |
| Sep 20 1994 | Midwest Dental Products Corporation | Dentsply Research & Development Corp | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007152 | /0151 |
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