The inventor's guide how to protect and profit from your idea

ग्रंथसूची विवरण
निगमित लेखक: British Library. Patents Information
अन्य लेखक: Newton, David 1941-
स्वरूप: पुस्तक
भाषा:English
प्रकाशित: [London], Hampshire, England, Brookfield, Vt. The British Library Gower c1997.
विषय: