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US4345734A
(en)
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Adjustable base mount for a walking-beam gas compressor
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US4660426A
(en)
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Pumping unit for actuating a down hole pump with static and dynamic counterweights
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BE346535A
(enrdf_load_html_response)
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US8272845B1
(en)
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Systems and methods for asymmetrical pumping in low speed, low volume fluid recovery operations
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US20110240323A1
(en)
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vibratory mechanism for a pile driver and a pile driver
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US3222940A
(en)
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Counterbalance means
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JP4435743B2
(ja)
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往復圧縮機
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US3277730A
(en)
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Counterbalance means
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BE346538A
(enrdf_load_html_response)
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US4492126A
(en)
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Variable leverage oil field pump jack
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FR2720808A1
(fr)
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Système pour équilibrer des couples changeants.
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FR3106860A1
(fr)
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Machine de transvasement de fluide à piston oscillant prismatique motorisée par un moteur Stirling à pistons oscillants prismatiques
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US1415852A
(en)
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Fluid compressor
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US2841992A
(en)
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Counterbalance means for unequal reciprocating loads
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US760596A
(en)
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Pump-head.
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US20230407854A1
(en)
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Long stroke parallel pump
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BE347932A
(enrdf_load_html_response)
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BE351891A
(enrdf_load_html_response)
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BE558338A
(enrdf_load_html_response)
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TNSN92102A1
(fr)
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Mecanisme d'entrainement d'une pompe a mouvement alterne
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BE516857A
(enrdf_load_html_response)
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BE385627A
(enrdf_load_html_response)
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NL2000741C2
(nl)
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Trilblok.
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CH656430A5
(en)
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Valve device for a machine comprising at least one dual-acting piston
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RU2202710C2
(ru)
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Скважинная электроплунжерная насосная установка
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