00586nam a22002057a 4500 20130607144457.0 ENG-107543 9788122205213 295.00 EN-91076 DBAD/PUB 609 Ellyard, David Who invented what when / by David Ellyard Delhi Orient Publishing 2012 5A/8, Ansari Road New Delhi 110002 255p. 22cm(pbk) Inventions History Chronology. Inventors Biography. ddc EN ELL 609 76455 76455 0 0 0 1 NFIC DBAD DBAD 2013-06-04 DBAD/PUB 295.00 0 609 ELL EN-91076 2013-06-04 00:00:00 1 295.00 EN