Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
Load children
B21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
Load children
B21D
WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
Load children
53/00
Making other particular articles
Load children Filter patents View analytics View as hierarchy
B21D53/02
heat exchangers; or parts thereof; , e.g. radiators, condensers; fins, headers
Load children Filter patents View analytics View as hierarchy