1836 PATENTS REPERTORY 100 PAGES + ILLUSTRATIONS EXTRACTS $99.86 Non-Fiction Subject Mathematics & Sciences Original/Reproduction Original Region Europe 1836 PATENTS REPERTORY 100 PAGES + ILLUSTRATIONS EXTRACTSParts of the 1836 Patents Book (incomplete), approx 100 sides + numerous illustrations. Some ageing.At least 100 sides with numerous engraved illustrations ( tiny sample shown)