B28B21/10 - CPC Classification Index

ClassID:

47575 ⎘

B28B21/10 - CPC Classification

Classification description:

Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means

Sub-classes:

B28B21/12 » tamping or ramming the material or the mould elements 1
B28B21/14 » vibrating, e.g. the surface of the material 2
B28B21/18 » using expansible or retractable mould or core elements 2
B28B21/22 » using rotatable mould or core parts 2
B28B21/36 » applying fluid pressure or vacuum to the material 1

Recent Application in this class:

20180297234

Method for producing concrete pipes

20180215072

Devices and processes for making concrete articles