62 / | HD | REFRIGERATION |
132 | DF | AUTOMATIC CONTROL {19} |
141 | DF | .~ Of closed system sorbent type {2} |
142 | DF | .~.~ Discontinuous operation of refrigerant or sorbent container unit {1} |
143 | DF | .~.~.~ Of intermittent generator-sorber unit {2} |
144 | DF | .~.~.~.~ Plural unit sequence or alternation {1} |
145 | .~.~.~.~.~ Serially connected type |