Inventor

OSTERTAG ALFRED

17 patents

⚠️ This page may combine multiple inventors who share the name “OSTERTAG ALFRED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OSTERTAG ALFRED

EASTMAN CHRISTENSEN CO

Stabilizer for deep well drilling tools

Core drilling tool with direct drive

Nozzle retention system for a drill bit

ECOROLL AG WERKZEUGTECHNIK

Method of and tool for rolling a workpiece, and arrangement of a rolling tool and a workpiece

Skiving head and process for skiving cylinders and cylinder tubes

Hammering device for influencing workpieces

OSTERTAG ALFRED

Fluidostatic rolling device for surface processing and method for shaping the edge layer

Paring tool, method for producing a cylinder unit and lathe

Rolling body guide with a separately exchangeable rolling body as well as a receiving section and a rolling tool with an associated exchange method

CHRISTENSEN INC

Apparatus for making-up and breaking threaded pipe connections

Double acting shock absorbers for drill strings

CHRISTENSEN DIAMOND PROD CO

Shrink-fit sleeve apparatus for drill strings

Stabilizer for drill strings

HEGENSCHEIDT GMBH WILHELM

Rolling milling tool

Roller milling tool unit for a milling machine tool

NORTON CO

Undercutting device for anchor holes

RÖMPP WOLFGANG

Rolling tool