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The ornamental design for a periscopic viewing device, as shown. |
FIG. 1 is a front elevation of a periscopic viewing _device showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear elevation thereof;
FIG. 4 is a side elevation thereof;
FIG. 5 is a bottom plan view thereof; and
FIG. 6 is a cross-section taken on line 6--6 of FIG. 1.
Patent | Priority | Assignee | Title |
D276816, | Jun 09 1983 | Hand-held periscope |
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