FIG. 1 is a front, top perspective view of a refractory brick showing my new design;
FIG. 2 is a back, top perspective view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a left-side view thereof;
FIG. 7 is a right-side view thereof; and,
FIG. 8 is a bottom view thereof.
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Jun 25 2008 | STEPHANSKY, JOHN J | Harbison-Walker Refractories Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 021184 | /0761 |
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Jul 02 2008 | | Harbison-Walker Refractories Company | (assignment on the face of the patent) | | / |
Dec 23 2015 | Harbison-Walker Refractories Company | APGI, LLC | MERGER SEE DOCUMENT FOR DETAILS | 063683 | /0631 |
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Dec 30 2015 | A P GREEN REFRACTORIES, INC | HARBISONWALKER INTERNATIONAL, INC | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 063692 | /0624 |
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