000			00423nam a2200157Ia 4500
008			131223s9999 xx 000 0 und d
040			_aISI KOLKATA
041			_aEnglish
082			_a621.3817 _bD695
100			_aDorf R H
245			_aMaking photoetched circuits in your workshop
260			_c1955
500			_aphoto copy from Radio Electronics, Dec. 1955, pp.54-58
650			_aPrinted circuits
942			_cBK
999			_c100054 _d100054