Packaging material blank

The ornamental design for a packaging material blank, as shown and described.

The FIGURE is a top plan view of a packaging material blank, according to my new design.

The solid lines within the outer rectangular perimeter of the packaging material blank depict scored fold lines, also known as crease lines.

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Oct 01 2019		Tetra Laval Holdings & Finance S.A.	(assignment on the face of the patent)
Oct 07 2019	JACOBSSON, KRISTIAN	TETRA LAVAL HOLDINGS & FINANCE S A	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	051124	0330	pdf

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