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Propulsion system

Machine element or mechanism – Mechanical movements – Rotary to intermittent unidirectional motion
Patent

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Propulsion system

Machine element or mechanism – Mechanical movements – Rotary to intermittent unidirectional motion
Patent

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Propulsion system

Machine element or mechanism – Mechanical movements – Rotary to intermittent unidirectional motion
Patent

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Propulsion system

Machine element or mechanism – Mechanical movements – Rotary to intermittent unidirectional motion
Patent

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Protective device for guide track between two relatively movable

Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent

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Protective devices for threaded drive shafts

Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent

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Pulsed drive means for shaker

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pump drive for deep well pumping installations

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pump jack

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pump jack

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pump jack

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pump jack slant wells

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pump jack system for oil well

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pump lever for a jack

Machine element or mechanism – Mechanical movements – Reciprocating to or from oscillating
Patent

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Pump operating mechanisms

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pumping apparatus

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pumping device

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pumping device for wells, such as oil wells

Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent

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Pumping mechanism

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Pumping unit

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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