Index of /pdf/friden/patents
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   DIR /pdf/friden
       2565231_Singer_KEY_SHIFT_MECHANISM.pdf
       2700446_Flexowriter_Patent_Jan55.pdf
       2963137_GiddingsAndLewis_CONTROLS_FOR_A_TYPEWRITER_AND_ASSOCIATED.pdf
       3202878_Friden_PLUGBOARD_APPARATUS_WITH_LATERAL_MOVEMEN.pdf
       3327828_Friden_KEYBOARD_MECHANISM_HAVING_LATCH_MEANS.pdf
       3327829_Friden_FOR_KEYBOARD_MECHANISM.pdf
       3355000_Friden_TYPE_BAR_ACTUATING_MECHANISM_WITH_SEPARA.pdf
       3366322_Friden_BLODGETT_HIGH_SPEED_PUNCH.pdf
       3419850_Friden_PROGRAMMABLE_COMPUTER_UTILIZING_NONADDRE.pdf
       3511352_AUTOMATIC_BAR_TYPEWRITERS_AND_THE_LIKE_H.pdf
       3975716_Arrangement_in_connection_with_a_printer.pdf