Two-window welding mask

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Description

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.

Referenced Cited
U.S. Patent Documents
D320868 October 15, 1991 Kumagai et al.
4195363 April 1, 1980 Jenson
4785954 November 22, 1988 Li
4875235 October 24, 1989 Kuhlman
Patent History
Patent number: D342347
Type: Grant
Filed: Feb 24, 1992
Date of Patent: Dec 14, 1993
Inventor: Chung-Ming Chen (Tou Fen Jen, Miao Li Hsing)
Primary Examiner: Kay H. Chin
Law Firm: Yuso International Patent and Trademark Office
Application Number: 7/841,438
Classifications
Current U.S. Class: D29/9; D29/7