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The ornamental design for electrical insulating sleeve, as shown. |
FIG. 1 is a perspective view of an electrical insulating sleeve showing my new design;
FIG. 2 is a front elevation view of the design of FIG. 1;
FIG. 3 is a plan view of the design of FIG. 1; and
FIG. 4 is a bottom view of the design of FIG. 1.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 18 1976 | Homac Mfg. Company | (assignment on the face of the patent) |
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