▁of ▁computer - a ided ▁design ▁( C AD ), ▁the ▁use ▁of ▁draft ing ▁machines , ▁especially ▁in ▁the ▁professional ▁sector , ▁has ▁dr ast ically ▁decl ined , ▁supp l anted ▁first ▁by ▁pen ▁plot ters , ▁and ▁then ▁by ▁large - format ▁in k jet ▁printer s . ▁ ▁Notes ▁▁ ▁Category : Visual ▁arts ▁materials ▁Category : Te chn ical ▁drawing ▁tools <0x0A> </s> ▁L ino ▁R ave cca ▁( 1 9 2 0 ) ▁is ▁an ▁Italian ▁trade ▁union ist ▁and ▁synd ical ist . ▁▁ ▁In ▁ 1 9 5 0 ▁he ▁was ▁one ▁of ▁the ▁found ers ▁of ▁Italian ▁Labour ▁Union ▁( UI L ) ▁ ▁one ▁of ▁the ▁biggest ▁Italian ▁trade ▁union ▁cent ers . ▁He ▁was ▁general ▁secretary ▁of ▁UI L ▁from ▁ 2 7 ▁October ▁ 1 9 6 9 ▁to ▁ 2 7 ▁October ▁ 1 9 7 1 . ▁He ▁was ▁also ▁one ▁of ▁the ▁most ▁important ▁polit icians ▁within ▁the ▁Italian ▁Democratic ▁Social ist ▁Party ▁( PS DI ) ▁representing ▁this ▁fa ction ▁within ▁the ▁UI L . ▁He ▁was ▁member ▁of ▁Cons ig lio ▁Nazionale ▁Econom ia ▁e ▁Lav oro ▁( CN EL ) ▁from ▁ 2 6 ▁January ▁ 1 9 7 7 ▁to ▁his ▁res ignation ▁on ▁▁ 3 1 ▁March ▁ 1 9 8 0 . ▁ ▁Notes ▁ ▁See ▁also ▁Italian ▁Labour ▁Union ▁ ▁External ▁links ▁ ▁UI L ▁official ▁page ▁ ▁C N EL ▁official ▁page ▁ ▁Category : 1 9 2 0 ▁birth