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The ornamental design for a dental impression tray, substantially as shown and described. |
FIG. 1 is a top perspective view of a dental impression tray showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevation thereof of the left;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevation thereof; and
FIG. 7 is a cross-section taken along lines 7--7 of FIG. 2.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 08 1978 | Modern Materials, Inc. | (assignment on the face of the patent) | / | |||
Sep 11 1980 | Warner-Lambert Company | MODERN MATERIALS, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 003803 | /0390 | |
Jul 30 1986 | MODERN MATERIALS MANUFACTURING INC , AKA MODERN MATERIALS, INC | COLUMBUS DENTAL MANUFACTURING COMPANY, THE, A CORP OF OHIO | ASSIGNMENT OF ASSIGNORS INTEREST | 004585 | /0190 | |
Sep 03 1986 | COLUMBUS DENTAL MANUFACTURING COMPANY THE | MILES LABORATORIES, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004624 | /0616 |
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