TY  - GEN
T1  - Fejezetek a Magyar szabadalom-tèorténetbèol [Chapters from the history of Hungarian patents] [text in Hungarian] /
AU  - Szala Erzsebet, A.,
N1  - Donated to the Library by Gabor Karetka.
ID  - 13471
KW  - Patents.
KW  - PATENTS : HISTORY
KW  - HUNGARY
TI  - Fejezetek a Magyar szabadalom-tèorténetbèol [Chapters from the history of Hungarian patents] [text in Hungarian] /
ER  -