B21H3/00 - CPC Classification Index

ClassID:

39052 ⎘

B21H3/00 - CPC Classification

Classification description:

Making helical bodies or bodies having parts of helical shape

Sub-classes:

B21H3/02 » external screw-threads; {Making dies for thread rolling} 69
B21H3/08 » internal screw-threads 22
B21H3/10 » twist-drills; screw-taps 7
B21H3/12 » articles with helicoidal surface 4

Recent Application in this class:

20120124924

Wind turbine installation comprising an apparatus for protection of anchor bolts and method of installation

20060117877

Feeding device and manufacturing method for rotation shaft

20060107717

Method and apparatus for precision rolling of rotationally symmetrical components