[직수입양서]
How to Obtain a Patent and What to Invent; A Complete Hand-Book of Advice and Useful Information for Inventors, Relative to Patent Office Procedure, Foreign Patents, Trademarks and Copyrights
[ Hardback, POD 주문제작도서 ]
[직수입양서]
How to Obtain a Patent and What to Invent; A Complete Hand-Book of Advice and Useful Information for Inventors, Relative to Patent Office Procedure, Foreign Patents, Trademarks and Copyrights
[ Paperback, POD 주문제작도서 ]