Patents for inventions: abridgments of specifications 40001-50000
Saved in:
| Format: | Book |
|---|---|
| Language: | English |
| Published: |
Delhi:
Manager of Publications,
1962
|
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Add Tag 
Improved cooking stoves in developing countries
