Photoelectric reader feeds business machines.
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| Title: | Photoelectric reader feeds business machines. |
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| Authors: | Shepard, D. H., Heasly, C. C., jr |
| Source: | Electronics (1930).; May 1955, Vol. 28, p134-138, 5p |
| Database: | Applied Science & Technology Source |
| ISSN: | 00135070 |
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