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The ornamental design for a pair of escalator control boxes, as shown and described. |
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FIG. 1 is a right perspective view of a pair of escalator control boxes showing our new design;
FIG. 2 is a left perspective view thereof.
The broken lines show the environment, an escalator terminal, in which the pair of escalator control boxes are placed and form no part of the claimed design.
Busse, Rido, Herrmann, Dietrich
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 17 1985 | HERRMANN, DIETRICH | Otis Elevator Company | ASSIGNMENT OF ASSIGNORS INTEREST | 004385 | /0023 | |
| Jan 17 1985 | BUSSE, RIDO | Otis Elevator Company | ASSIGNMENT OF ASSIGNORS INTEREST | 004385 | /0023 | |
| Feb 08 1985 | Otis Elevator Company | (assignment on the face of the patent) | / |
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