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1 result for “page 2 of 7” · 1808ms

Patent

US3232745 Producing rod-shaped semiconductor crystals

Cited prior art · Rummel Theodor, Kniepkamp Heinrich and 2 more · United States · 1966

ments of the third and fifth groups of the periodic system 3,098,741 7/1963 Enk et al. ------------ 75-10 of elements. It is of course necessary that the reaction gas contains, in