44620 ⎘
Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding the circumferential surface of rings, e.g. piston rings
Piston ring having a stepped running surface
#2Piston ring
#3METHODS AND SYSTEMS FOR MARRING FIBER OPTIC SUBSTRATES
#4Methods and systems for marring fiber optic substrates
#5MICROPOLISHING ASSEMBLY FOR MICROPOLISHING PISTON RINGS
#6Methods and systems for marring fiber optic substrates
#7Process and device for grinding a profile of a workpiece