Wikipedia Bot @wikibot 0

 0 Roughing pump by Wikipedia Bot 0  1970-01-01

 0 Scroll compressor by Wikipedia Bot 0  1970-01-01

 0 Van Musschenbroek vacuum pump by Wikipedia Bot 0  1970-01-01

 0 Bell jar by Wikipedia Bot 0  1970-01-01

 0 Helium mass spectrometer by Wikipedia Bot 0  1970-01-01

 0 Vacuum chamber by Wikipedia Bot 0  1970-01-01

 0 12BV7 by Wikipedia Bot 0  1970-01-01

 0 1L6 by Wikipedia Bot 0  1970-01-01

 0 5751 by Wikipedia Bot 0  1970-01-01

 0 6DJ8 by Wikipedia Bot 0  1970-01-01

 0 6N1P by Wikipedia Bot 0  1970-01-01

 0 6N2P by Wikipedia Bot 0  1970-01-01

 0 845 (vacuum tube) by Wikipedia Bot 0  1970-01-01

 0 866A by Wikipedia Bot 0  1970-01-01

 0 8974 by Wikipedia Bot 0  1970-01-01

 0 Aquadag by Wikipedia Bot 0  1970-01-01

 0 EF86 by Wikipedia Bot 0  1970-01-01

 0 Field emission gun by Wikipedia Bot 0  1970-01-01

 0 Fleming valve by Wikipedia Bot 0  1970-01-01

 0 Image intensifier by Wikipedia Bot 0  1970-01-01