Challenging puzzle for experienced crossword solvers
Vintage Tech Inventions and Patent Lore
Challenging puzzle for experienced crossword solvers
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Across
- 1. Rotating medium capturing sound waves in vintage audio tech
- 3. Glass valve controlling electrons pre-transistor era
- 7. Invisible frequency transmitting signals through ether
- 8. Rotary component connecting voices in analog networks
Down
- 2. Printing telegraph with mechanical character dispatching
- 4. Edison's device spinning acoustic time in grooves
- 5. Incandescent thread glowing to illuminate invention’s spark
- 6. Mechanical marvel mimicking human motions with gears
- 9. Early electrical messenger defying distance with wires
- 10. Grinding mechanism powering mechanical invention’s heartbeat
- 11. Reservoir sustaining written communication before ballpoints
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