Spool holder

The ornamental design for spool holder, as shown and described.

FIG. 1 is an exploded elevational view of the claimed design.

FIG. 2 is a top plan view.

FIG. 3 is a bottom plan view.

FIG. 4 is an exploded top perspective view.

FIG. 5 is an exploded bottom perspective view; and,

FIG. 6 is a top perspective view in an assembled position.

Patent	Priority	Assignee	Title
1580687,
5203518,	Aug 09 1991		Creel adapter
5492280,	Oct 24 1992	W SCHLAFHORST AG & CO	Pallet for transporting a textile bobbin or tube relative to a textile machine
5626302,	Aug 28 1995		Sewing machine cone spool to spindle adapter
5626309,	Oct 30 1995		Collar attachments for a creel adapter
6044782,	Jul 13 1998		Bobbin holder for a sewing machine
6170416,	Mar 31 1997		Spool winder for sewing machines
7189258,	Jan 02 2002	Medtronic, Inc.	Heart valve system
8973859,	Nov 20 2010		Thread guide for sewing and embroidery machines
20140284411,
D282312,	Jul 18 1983	PPG Industries Ohio, Inc	Yarn bobbin
D292643,	Feb 14 1985	PPG Industries Ohio, Inc	Yarn bobbin
D565608,	Aug 10 2006	Tokai Kogyo Mishin Kabushiki Kaisha	Thread stand for sewing machine

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