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The ornamental design for a heavy duty drill shear attachment, as shown and described.
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FIG. 1 is a perspective view showing my new design heavy duty drill shear attachment;
FIG. 2 is a top plan view;
FIG. 3 is a right side elevational view;
FIG. 4 is a front elevational view;
FIG. 5 is a rear elevational view;
FIG. 6 is a left side elevational view; and,
FIG. 7 is a bottom plan view.
The broken line drawings of FIG. 1 are for illustrative purposes only to show environment and form no part of the claimed design.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Dec 16 2003 | Malco Products, Inc. | (assignment on the face of the patent) | / | |||
Dec 23 2003 | PETERSON, ERIC L | MALCO PRODUCTS, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 014866 | /0144 | |
Jan 31 2017 | MALCO PRODUCTS, INC | Malco Products, SBC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 049429 | /0372 |
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