| electric typewriter(noun, technology, entity, form, concept) |
| electronic video recording(noun, technology, entity, form, concept) |
| electrophorus(noun, technology, entity, form, concept) |
| electroscope(noun, technology, entity, form, concept) |
| electrostatic generator(noun, technology, entity, form, concept) |
| elephant clock(noun, technology, entity, form, concept) |
| epicyclic gearing(noun, technology, entity, form, concept) |
| equation of time(noun, technology, entity, form, concept) |
| equatorial ring(noun, technology, entity, form, concept) |
| equatorium(noun, technology, entity, form, concept) |
| escapement mechanism(noun, technology, entity, form, concept) |
| feedback system(noun, technology, entity, form, concept) |
| fidelipac(noun, technology, entity, form, concept) |
| filar micrometer(noun, technology, entity, form, concept) |
| filmstrip(noun, technology, entity, form, concept) |
| fireless locomotive(noun, technology, entity, form, concept) |
| fireman(noun, technology, entity, form, concept) |
| fireplace(noun, place, position, spot, location) |
| fixed axial gnomon(noun, technology, entity, form, concept) |
| flight computer(noun, technology, entity, form, concept) |