Inventions and their protection.
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
New York :
C. Boardman Co.,
[1954]
|
| Edition: | 2d ed. |
| Subjects: |
| Item Description: | Bibliography: pages 475-476. |
|---|---|
| Physical Description: | 495p : illustrations ; 24cm. |