|
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 |
| Patent | Priority | Assignee | Title |
| 2255197, | |||
| 2569576, | |||
| 3019689, | |||
| 3410638, | |||
| 3629870, | |||
| 4077703, | Jul 19 1976 | Optical apparatus for viewing objects at an angle to the direct line of vision | |
| 184806, | |||
| 236284, | |||
| D245954, | May 28 1976 | Combined stool and periscope |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Date | Maintenance Fee Events |
| Date | Maintenance Schedule |