B21D51/20 - CPC Classification Index

ClassID:

38799 ⎘

B21D51/20 - CPC Classification

Classification description:

Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like barrels

Recent Application in this class:

20240219139

METHOD OF FORMING A CHAMBER IN A BARREL BLANK

20230243613

Method of forming a chamber in a barrel blank

20140291336

Steel drum and method for manufacturing such a steel drum

20100236122

Flowforming Gun Barrels and Similar Tubular Devices

20060277742

Knock-down drums