Inventions and their protection /
Main Author: | |
---|---|
Format: | Book |
Language: | English |
Published: |
Cleveland :
Penton Pub. Co.,
1938
|
Edition: | 1st ed |
Series: | Machine design series
|
Subjects: |
Main Author: | |
---|---|
Format: | Book |
Language: | English |
Published: |
Cleveland :
Penton Pub. Co.,
1938
|
Edition: | 1st ed |
Series: | Machine design series
|
Subjects: |