Apparatus for pumping oil wells

申请公布号：US2259021(A)

申请号：US19380244784

申请日期：1938.12.09

申请公布日期：1941.10.14

申请人：

SULLIVAN MACHINERY COMPANY

发明人：WINEMAN WADE H.

分类号：E21B43/12

主分类号：E21B43/12

SULPHONAMIDE COMPOUNDS EXHIBITING ACTIVITY IN RESPECT TO THE 5-HT RECEPTOR

METHOD OF AGGLOMERATING METALLURGICAL PARTICLES

APPARATUS FO RJOINTING TWO PROFILED RAILS

FOOD-HOLDING CONTAINER WITH AN INDICATOR ENABLING TO IDENTIFY A DATE OF PLACING FOOD THEREIN

SHIPPING PACKAGE IN PARTICULAR FOR BOTTLES

AUTONOMOUS INDUCTION-TYPE CURRENT GENERATOR

HYDRODYNAMIC RETARDING HYRDOFOIL IN PARTICULAR THAT OF EMERGENCY TYPE

APPARATUS FOR EJECTING A REPLACEABLE PIPETTE TIP

MANUALLY OPERATED PROPELLING SYSTEM FOR WATERCRAFTS

SMOKE-GENERATING GRENADE

WATER METER HOUSING

PLASTIC PALLET

METHOD OF AND APPARATUS FOR PLACING A MEDICAL DEVICE WITHIN A PREDETERMINED AREA OF A BODY DUCT

ORGANOZILICEOUS COMPOUNDS CONTAINING UREA GROUPS, THEIR PRODUCTION AND APPLICATION

Fremgangsmåte for fremstilling av vinylacetat

Kretsbryter med en termisk og magnetisk beskyttet ytterlederpol, en ubeskyttet noeytralleder-pol og en lysbueslukkende anordning for ytterleder-polen

Rensebørster for bremseskiver på tog

Utstråling og dampfase hydrogenperoksid sterilisering av emballasje

Pumpe for fibroes massesuspensjon med anordninger for separering av gass fra suspensjonen

Roerkobling