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The ornamental design for a gas mask, as shown and described. |
FIG. 1 is a front elevational view of a gas mask showing our new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational veiw thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a cross sectional view thereof; and
FIG. 8 is a top and front perspective view thereof.
Kumagai, Hitoshi, Kumagai, Akira
Patent | Priority | Assignee | Title |
D331819, | Dec 28 1989 | THE K COMPANY | Diving helmet |
D332843, | Jun 14 1990 | K COMPANY, THE | Diving helmet |
D342347, | Feb 24 1992 | Two-window welding mask | |
D354348, | Jul 19 1993 | Smoke protective hood | |
D547442, | Oct 14 2005 | Avon Polymer Products Limited | Escape hood |
D696466, | Mar 14 2013 | ELMER S PRODUCTS INC | Shoulder pad mounted clear helmet |
D795418, | May 13 2016 | RPB SAFETY, LLC | Respirator helmet |
Patent | Priority | Assignee | Title |
4250877, | May 15 1978 | MORSE DIVING EQUIPMENT COMPANY, INC , A CORP OF MA | Diver's helmet and face mask for use therewith |
4677976, | Apr 01 1983 | Toyo Cci Kabushiki Kaisha; Katsumi, Fujinuma | Emergency mask |
181887, | |||
GB2201096, |
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