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| All Patents in class 165/159 | |||||
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| Number | Date | Patentee | Title | Type | |
| 23,668 | Apr. 19, 1859 | R.G. Eunson | Water-cooler for steam-engines | ||
| 2,496,301 | Feb. 07, 1950 | C. Meixl | Tube Bundle Assembly for Heat Exchangers and the Like | heating apparatus | |
| 2,873,098 | Feb. 10, 1959 | J.L. Morgan | Heat exchange apparatus | ||