✦ LIBER ✦
Ultrasonic wave transducer (ultrasonic wave is applied through a cylindrical roller which is rolled along the text piede): Panametrix Inc , Japanese patent JPC 24989/69 (22 October 1969), (applied for 20 July 1967) (1906)
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 131 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0041-624X
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