| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 165/95 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 2,112,896 | Apr. 05, 1938 | R.M. Husband | Apparatus for Cleaning Heat Exchangers and the Like | boiler repair tools | |
| 3,314,474 | Apr. 18, 1967 | M.R. Estabrook | Liquid heat exchanger | ||