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| All Patents in class 362/285 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,031,201 | Feb. 18, 1936 | R.O. Beardsley | Attachment for Comparators | comparators | |
| 5,465,196 | Nov. 07, 1995 | P.B. Rau, M.J. Hasenberg | Portable Cordless Electric Utility Lamp | ||