Add to ORKGPatent for an Oil-Well Drill with the "...object of the invention being to provide means to prevent the drill from becoming unscrewed from the drill rod and dropping into the bottom of the well" (lines 12-16)
Patent for "a simple and inexpensive apparatus for drilling the rock and earth until sufficient loos...
Patent for a new and improved well lining. This design "has for its object to provide a seamless lin...
Patent for an improved kind of drill bit that is more durable against rock. The bit's cutting roller...
Patent for a simple, durable, and effective drill that "automatically expand[s] in the bottom of the...
Patent for improvements in fishing tool for oil wells: "in connection with oil well drilling and pum...
Patent for an Artesian or oil well drilling apparatus that has a detachable drill-bit in its tubing ...
Patent for improvement in pump-drills for boring artesian wells by “combining pump-valves and piston...
Patent for new and improved well-drilling machinery. This design "is to make a well-drilling machine...
Patent for a new and improved oil can. This design "has for its object to provide a can of improved ...
Patent for an expansion bit for a well-drilling apparatus that can be "adjusted and removed without ...
Patent for improvements in the construction and design of well-drilling machines
Patent for a mechanism that drills and bores; it attaches to a vehicle so the engine can be used to ...
Patent for a "pump for effectively pumping oil or quicksand from wells troubled with quicksand." (Li...
Patent for a grease trap "in which the grease is designed to be removed from the trap automatically ...
Patent for improvements in tools for sinking artesian wells, that the tool “will perform its duty un...
Patent for "a simple and inexpensive apparatus for drilling the rock and earth until sufficient loos...
Patent for a new and improved well lining. This design "has for its object to provide a seamless lin...
Patent for an improved kind of drill bit that is more durable against rock. The bit's cutting roller...
Patent for a simple, durable, and effective drill that "automatically expand[s] in the bottom of the...
Patent for improvements in fishing tool for oil wells: "in connection with oil well drilling and pum...
Patent for an Artesian or oil well drilling apparatus that has a detachable drill-bit in its tubing ...
Patent for improvement in pump-drills for boring artesian wells by “combining pump-valves and piston...
Patent for new and improved well-drilling machinery. This design "is to make a well-drilling machine...
Patent for a new and improved oil can. This design "has for its object to provide a can of improved ...
Patent for an expansion bit for a well-drilling apparatus that can be "adjusted and removed without ...
Patent for improvements in the construction and design of well-drilling machines
Patent for a mechanism that drills and bores; it attaches to a vehicle so the engine can be used to ...
Patent for a "pump for effectively pumping oil or quicksand from wells troubled with quicksand." (Li...
Patent for a grease trap "in which the grease is designed to be removed from the trap automatically ...
Patent for improvements in tools for sinking artesian wells, that the tool “will perform its duty un...
Patent for "a simple and inexpensive apparatus for drilling the rock and earth until sufficient loos...
Patent for a new and improved well lining. This design "has for its object to provide a seamless lin...
Patent for an improved kind of drill bit that is more durable against rock. The bit's cutting roller...