Combined door viewer and two-way intercom unit
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FIG. is a rear elevational view of a combined door viewer and two-way intercom unit showing my new design.
FIG. 2 is a front elevational view thereof.
FIG. 3 is a right side elevational view, with the left side being a mirror image thereof.
FIG. 4 is a top plan view; and
FIG. 5 is a bottom plan view.
- Radio Shack, '75 Catalog, .COPYRGT.'74, p. 43, Item #43-226.