CrosswordMint
Vintage Innovations Patent Enigma
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Trademark-related term evoking Alexander Graham Bell’s telephonic patents
  • 2. Electronic apparatus that boosts signal strength in vintage radios
  • 4. Early sound recorder and reproducer invented by Edison’s patented device
  • 6. Illuminating devices utilizing early patentable optical principles
  • 7. Methodical arrangement for accessing patented mechanical contraptions
  • 9. Component that encodes numeric pulses in classic telephony
  • 11. Variable resistor used in retro electric current control patents
  • 14. Vacuum tube type patented for improved television camera tubes
Down
  • 3. Obsolete wordplay for a protective mechanism in early gadget patents
  • 5. X-ray viewing gadget patented for real-time skeletal imaging
  • 8. Rotational storage medium patented by Edison for audio playback
  • 10. Seminal solid-state component replacing vacuum tubes in mid-century tech
  • 12. Precursory electric communication device revolutionizing long-distance signalling
  • 13. Electromagnetic carrier patented for wireless communication across distances
  • 15. Light-sensitive device patented for converting photons into electric signals

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