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The ornamental design for a cell scraping device, as shown. |
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FIG. 1 is a plan view of the cell scraper showing my new design;
FIG. 2 is a side elevation of the cell scraper;
FIG. 3 is an elevation view from the left end of FIG. 2;
FIG. 4 is an elevation view from the right end of FIG. 2.
McAleer, William J., Paul, Edward L., Grabner, Roy W.
| Patent | Priority | Assignee | Title |
| D275127, | Jul 02 1981 | Curette |
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 02 1979 | MCALEER, WILLIAM J | MERCK & CO INC , A CORP OF NJ | ASSIGNMENT OF ASSIGNORS INTEREST | 003850 | /0995 | |
| May 02 1979 | PAUL, EDWARD L | MERCK & CO INC , A CORP OF NJ | ASSIGNMENT OF ASSIGNORS INTEREST | 003850 | /0995 | |
| May 02 1979 | GRABNER ROY W | MERCK & CO INC , A CORP OF NJ | ASSIGNMENT OF ASSIGNORS INTEREST | 003850 | /0995 | |
| May 07 1979 | Merck & Co., Inc. | (assignment on the face of the patent) | / |
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