445 / | HD | ELECTRIC LAMP OR SPACE DISCHARGE COMPONENT OR DEVICE MANUFACTURING |
1 | DF | PROCESS {13} |
23 | DF | .~ With assembly or disassembly {8} |
38 | DF | .~.~ Including evacuating, degasifying or gas, vapor, liquid or meltable or sublimable solid introduction {5} |
39 | .~.~.~ With cooling, e.g., to condense |