✦ LIBER ✦
Echo sounding: Marconi Sounding Device Co Limited British Patent 1, 177, 547 (Filed 20 August 1968) (2304)
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 159 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0041-624X
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