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(Computer) Fortunes, Follies And Far-Out Ideas... — $210

Reynolds-Bartiromo

(Electronics - Robotics) ROBOT — $200

Anon- I.R.I.

(Electronics) Laser Wavelength Chart — $160

Anon- Exciton

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(Thematic - Business) Portland Area High Technology Evolution — $185

Cacy & Linch

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(Thematic - Business) Silicon Valley Genealogy — $320

Hoefler & Yelverton

These are the very real, yet mostly imperceptible frontiers of the time. From Atomic radiation, to visible light, to radar, television bandwidth, up to "alternating current for light & power". This is a chart of some of the domains that exist beyond our senses but form and contain our world, and would be the focus of many 20th century developments. Condition is good with some marginal repaired tears and minor chipping. Overall size is approximately 29 x 41.5 (inches)

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(Thematic) The Radiant Energy Spectrum — $350

Caverly - Welch