Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E04
BUILDING
Load children
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
Load children
2201/00
Joining sheets or plates or panels
Load children Filter patents View analytics View as hierarchy
E04F2201/05
Separate connectors or inserts, e.g. pegs, pins, keys or strips
Load children Filter patents View analytics View as hierarchy
E04F2201/0523
Separate tongues; Interlocking keys, e.g. joining mouldings of circular, square or rectangular shape
Load children Filter patents View analytics View as hierarchy
E04F2201/0564
depending on the use of specific materials
Load children Filter patents View analytics View as hierarchy
E04F2201/0588
of organic plastics with or without reinforcements or filling materials
Filter patents View analytics View as hierarchy