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The ornamental design for a chromatography column locking ring, as shown and described.
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The design is a locking ring that can fit into an opening of an end of a chromatography column assembly.
FIG. 1 is a perspective view of a chromatography column locking ring showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
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| Jun 10 2003 | HELLSTROM, KARL-GUNNAR | Amersham Biosciences AB | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014230 | /0607 |
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