| 422 / | HD | CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING |
| 913 | DD | TEST TUBES [B01L 3/14] {3} |
| 916 | | .~ Closing or opening means, e.g., corks, bungs [B01L 3/14C] {1} |
| 917 | DD | .~.~> With identification means, e.g., coded [B01L3/14C2] |