| Hood's cross-staff(noun, technology, entity, form, concept) |
| Hornsby water clock(noun, technology, entity, form, concept) |
| Imperial Typewriter Company typerwriter(noun, technology, entity, form, concept) |
| Jacob's staff(noun, technology, entity, form, concept) |
| Japanese typewriter(noun, technology, entity, form, concept) |
| Jayrun water clock(noun, technology, entity, form, concept) |
| Kirkdale sundial(noun, technology, entity, form, concept) |
| Kyota Sugimoto's typewriter(noun, technology, entity, form, concept) |
| Leibniz wheel(noun, technology, entity, form, concept) |
| Leyden jar(noun, technology, entity, form, concept) |
| London dial(noun, technology, entity, form, concept) |
| Lucien Stephen Crandall's typewriter(noun, technology, entity, form, concept) |
| Magdeburg hemisphere(noun, technology, entity, form, concept) |
| Man Enters the Cosmos(noun, technology, entity, form, concept) |
| Mariner's astrolabe(noun, technology, entity, form, concept) |
| MarsDial(noun, technology, entity, form, concept) |
| Maxwell's thermodynamic surface(noun, technology, entity, form, concept) |
| Meyer locomotive(noun, technology, entity, form, concept) |
| Montreal protocol(noun, technology, entity, form, concept) |
| Moondial(noun, technology, entity, form, concept) |