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The ornamental design for an envelope power stacker, as shown. |
FIG. 1 is an isometric view of the envelope power stacker showing my new design;
FIG. 2 is an end view thereof;
FIG. 3 is an end view thereof opposite the end view shown in FIG. 2;
FIG. 4 is a top plan view thereof;
FIG. 5 is a side elevational view thereof;
FIG. 6 is a side elevational view thereof opposite the side shown in FIG. 5 .
Patent | Priority | Assignee | Title |
D293384, | Dec 16 1985 | Ventureprise, Inc.; VENTUREPRISE INC , A CORP MICHIGAN | Conveyor |
D299774, | Sep 05 1986 | Opex Corporation | Envelope conveyor/stacker |
D478121, | Jan 07 2002 | Opex Corporation | Envelope opener |
D974461, | Mar 19 2019 | Opex Corporation | Envelope opener |
Patent | Priority | Assignee | Title |
193551, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 17 1978 | Omation Corporation | (assignment on the face of the patent) | / | |||
Apr 30 1994 | Omation Corporation | Opex Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006975 | /0641 |
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