| 165 / | HD | HEAT EXCHANGE |
| DIG 76 | | WITH SCRAPER FOR REMOVING PRODUCT FROM HEAT TRANSFER SURFACE {4} |
| DIG 77 | DD | .~> Screw shaped scraper |
| DIG 78 | DD | .~> Linearly operated scraper {1} |
| DIG 80 | DD | .~> Plural scrapers for spaced shelves or chambers |
| DIG 81 | DD | .~> Rotary heat exchange scraper or scraper for rotary heat exchange surface {10} |