DIFF Subgroup
F16B 15/0015 Full Title
Nails; Staples (surgical staples A61B17/064; manufacture of nails or staples B21G ; railway spikes E01B9/06)
F16B 15/0015 Nails; Staples (surgical staples A61B17/064; manufacture of nails or staples B21G ; railway spikes E01B9/06)