URI:
       Index of /components/standardMicrosystems/patents
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   DIR /components/standardMicrosystems
       GB2112235A_SMC_Data_Separator_1982.pdf
       US4404554_SMC_CRT5027_1982.pdf
       US4472818_SMC_Data_Separator_1984.pdf
       US4845575_SMC_Data_Separator_1987.pdf