Patent
   D342347
Priority
Feb 24 1992
Filed
Feb 24 1992
Issued
Dec 14 1993
Expiry
Dec 14 2007
Assg.orig
Entity
unknown
2
4
n/a
The ornamental design for a two-window welding mask, as shown and described.

FIG. is a perspective view of a two-window welding mask showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Chen, Chung-Ming

Patent Priority Assignee Title
8990964, Jul 21 2012 Welding helmet
D967546, Aug 17 2021 Welding mask
Patent Priority Assignee Title
4195363, Dec 30 1977 Perimeter draft welding hood
4785954, Oct 22 1986 HENRY FACTORY CO , LTD Welding maskholder
4875235, Jul 27 1988 Welder's mask with breath controlled eye shield
D320868, Nov 16 1989 Gas mask
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