CrosswordMint
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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