Water main valve lock

The ornamental design for a water main valve lock, as shown and described.

FIG. 1 is a top, right side perspective view of my new water main lock valve;

FIG. 2 is a front elevation;

FIG. 3 is a rear elevation;

FIG. 4 is a left side elevation;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view.

Patent	Priority	Assignee	Title
1294669,
1534965,
3524334,
4538434,	Mar 09 1984		Security housing for oil storage tank valve
4658608,	Feb 09 1982		Security valve mechanism for a hydraulic system
5598724,	Dec 26 1995	NORTH SAFETY PRODUCTS L L C	Butterfly valve safety lock
5823023,	Oct 29 1997	Brady USA, Inc.	Locking device for a valve
6152161,	Oct 21 1998	Applied Materials Inc.; Applied Materials, Inc	Valve lockout device
6604391,	May 02 2000	Centre des Technologies on Gaz Naturel	Security lock assembly for shut-off valve
882106,
D272515,	Nov 09 1981		Spare tire wheel lock
D298911,	Apr 29 1986		Propeller lock
D439498,	Jan 20 1998	Elekta IGS, SA	Lock for stereotactic instrument

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