DIFF Subgroup
B21K 1/60 hollow or semi-hollow rivets
Introduced: September 1968
Full Title
Making machine elements > rivets > hollow or semi-hollow rivets
No child classifications to compare. This is a leaf node in both IPC and CPC.
B21K 1/60 Introduced: September 1968
Making machine elements > rivets > hollow or semi-hollow rivets
No child classifications to compare. This is a leaf node in both IPC and CPC.