Challenging puzzle for experienced crossword solvers
Obscure Patented Innovations of Yesteryear
Challenging puzzle for experienced crossword solvers
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Across
- 1. Revolutionizing memory through electron spin manipulation, yet overlooked in patent annals
- 2. An archaic hypothesis patent claiming paternal influence of prior mates in offspring traits
- 3. An innovative joint patent omitting usual metal ferrules for cable securing
- 5. Forgotten conduit patent channeling light via internal reflections before fiber optics
- 7. Branched polymer patented decades ago promising radical molecular architecture advantages
- 8. Early vacuum tube patent generating microwaves, pivotal but overshadowed by radar tech
Down
- 4. A cryptic insect-mimicry patent, blending ant and chameleon adaptations
- 6. A patented geometric shape blending cylinder and ellipsoid for mechanical bearings
- 9. A patented airborne rotating device designed for stable vertical ascent
- 10. An 18th-century patent for an early steam transport device, predating classic locomotives
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