Patent-rights: notes on the procedure for their acquisition and maintenance :
and on the manner in which such rights are affected by recent legislation. /
Compiled for the use of inventors, patentees and others interested in the protection of industrial property. By George Gatton Melhuish Hardingham ...
|Published / Created:||
C. Lockwood and Son,
|Notes:||Physical description: v, , 64 p. ; 22 cm. (8vo) |