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The ornamental design for a collapsible periscope, as shown and described. |
FIG. 1 is a front perspective view of a collapsible periscope embodying my new design, shown in an extended position;
FIG. 2 is a side elevational view thereof;
FIG. 3 is an elevational view from the opposite side of FIG. 1;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a view similar to FIG. 1, but shown in a collapsed position; and
FIG. 6 is a rear perspective view thereof.
Patent | Priority | Assignee | Title |
D349295, | Jan 31 1992 | Pocket microscope |
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