✦ LIBER ✦

341. Cathode: B Ch Dyubua et al, USSR Patent, No 246,683, appl 13th March 1965, publd 12th May 1970

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

342. A metallic type of cathode: B Ch Dy

📂 Article 📅 1971 🏛 Elsevier Science 🌐 English ⚖ 146 KB

123. Cathode for an electrical-vacuum de

📂 Article 📅 1972 🏛 Elsevier Science 🌐 English ⚖ 186 KB

334. A cathode: A A Gugnin et al, USSR P

📂 Article 📅 1971 🏛 Elsevier Science 🌐 English ⚖ 155 KB