| Subject | English | Italian |
| chem. | gutta percha | guttaperga |
| nat.sc. | gutta-percha | guttaperca |
| agric. | gutta-percha | albero della guttaperca (Palaquium gutta) |
| industr., construct., el. | gutta-percha insulated wire | filo isolato in gomma |
| nat.sc., agric. | gutta-percha tree | guttaperca (Palaquium gutta) |
| patents. | rubber, gutta-percha, gum, asbestos, mica | caucciù, guttaperca, gomma, amianto, mica |
| patents. | rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and included in class 17 | caucciù, guttaperca, gomma, amianto, mica e prodotti in tali materie e compresi nella classe 17 |
| patents. | rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes | caucciù, guttaperca, gomma, amianto, mica e prodotti in tali materie non compresi in altre classi |