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Who Makes Harbor Freight's Vacuum Pumps & How Much Do They Cost?
For hand-powered vacuum pumps, Harbor Freight has two, manufactured by Mityvac and Maddox. There is also a standalone Pittsburgh Automotive air vacuum pump, but you'll need to attach it to a ...
Interesting Engineering on MSN7d
Scientists develop new thin film-based vacuum pump that could replace bulky motors
German researchers at Saarland University and the Center for Mechatronics and Automation Technology (ZeMA) are working to ...