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Patent US6149414 Oil sealed vane type rotary vacuum pump
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Patent US6149414 Oil sealed vane type rotary vacuum pump
Website URL:
http://www.google.com/patents/US6149414
Category:
Vacuum Flask Thermos
The invention concerns an oil-sealed vane-type rotary vacuum pump (1) with a rotor (3) and an oil pump (45, 46) whose suction chamber is fitted with feeds (64, 65 ...
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