http://web.mit.edu/varun_ag/www/bose.html  - It contains a proof that Sir Jagadish Chandra Bose invented the Mercury Coherer which was later used by Guglielmo Marconi and along with other patents .
(en)ˌeɪtʃtˌiːtˌiːpˈiː(fa):(en)slˈaʃslaʃ wˈɛb(fa).(en)mˈɪt(fa).(en)ˈɛduː slˈaʃ vˈɑːɹʌn ˈaɡ slˈaʃ dˌʌbəljˌuːdˌʌbəljˌuːdˈʌbəljˌuː slˈaʃ bˈəʊs(fa).(en)ˌeɪtʃtˌiːˌɛmˈɛl(fa) (en)ɪt kəntˈeɪnz ɐ pɹˈuːf ðat sˌɜː dʒˈaɡɐdˌɪʃ tʃˈʌndɹə bˈəʊs ɪnvˈɛntɪd ðə mˈɜːkjʊɹi kˈəʊhəɹə(fa) (en)wˌɪtʃ wɒz lˈeɪtə jˈuːzd baɪ ɡʌɡlˈiːlməʊ mɑːkˈəʊni(fa) (en)and ɐlˈɒŋ wɪð ˈʌðə pˈeɪtənts(fa) .