| 156 / | HD | ADHESIVE BONDING AND MISCELLANEOUS CHEMICAL MANUFACTURE |
| 349 | DF | SURFACE BONDING MEANS AND/OR ASSEMBLY MEANS THEREFOR {34} |
| 423 | ![]() | .~ Means assembling part within hole or aperture (telescoping) {1} |
| 424 | DF | .~.~> Electric lamp or space discharge device envelope basing type |