Hub structure

The ornamental design for a hub structure, as shown and described.

FIG. 1 is a perspective view of a hub structure in accordance with the invention.

FIG. 2 is a front elevational view of the hub structure of FIG. 1;

FIG. 3 is a left side view of the hub structure of FIG. 1; and,

FIG. 4 is a top elevational view of the hub structure of FIG. 1.

The broken lines are included for the purpose of illustrating environmental structure and form no part of the claimed design.

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
May 09 2006	UNGER, MICHAEL JOHN	DICKSON UNIGAGE, INC	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	017605	0390	pdf
May 11 2006		Dickson/Unigage, Inc.	(assignment on the face of the patent)
Apr 06 2018	DICKSON UNIGAGE, INC	NXT CAPITAL, LLC, AS AGENT	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	045462	0359	pdf

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