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04:43 Aug 2, 2006
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English to Chinese translations [PRO] Tech/Engineering - Engineering (general)
Pump jack operated compressor - Patent 4530646A compressor adapted to be associated with a pump jack on a producing well ... The horsehead 22 has the usual bridle assembly 26 connected thereto which is ... www.freepatentsonline.com/4530646.html - 40k - Cached - Similar pages
pkchan United States Local time: 04:40 Native speaker of: Chinese PRO pts in category: 20