✦ LIBER ✦
Apparatus for monitoring the time fault-free operation of vacuum pumps: S G Appel', Soviet Patent, class G 07 c, 3/10, No. 382117, claimed 5th July 1971, publd 1st Aug 1973
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 340 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0042-207X
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