Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
Load children
B21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
Load children
B21J
FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
Load children
7/00
Hammers; Forging machines with hammers or die jaws acting by impact
Load children Filter patents View analytics View as hierarchy
B21J7/20
Drives for hammers; Transmission means therefor
Load children Filter patents View analytics View as hierarchy
B21J7/30
operated by electro-magnets
Filter patents View analytics View as hierarchy