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| All Patents in class 312/236 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 128,715 | Jul. 09, 1872 | W.L. Dalbey | Coffee Roaster | ||
| 2,129,923 | Sep. 13, 1938 | M. Frankel | Refrigerator Cabinet | ||
| 3,042,384 | Jul. 03, 1962 | H.J. Bauman | Food serving cart | ||
| 3,584,927 | Jun. 15, 1971 | D.E. Ott, A.W. Carlson | Biology study enclosure | ||