B28B21/82 - CPC Classification Index

ClassID:

47619 ⎘

B28B21/82 - CPC Classification

Classification description:

Methods or machines specially adapted for the production of tubular articles; Moulds built-up from several parts; Multiple moulds; Moulds with adjustable parts

Sub-classes:

B28B21/84 » Moulds with one or more pivotable parts 0

Recent Application in this class:

20220362967

2022-11-17

METHOD AND DEVICE FOR PRODUCING CONCRETE PILE

20220063132

2022-03-03

Multi-Use Donut for Piping Installation

20200269467

2020-08-27

Devices and processes for making concrete articles

20190337187

2019-11-07

Devices and processes for making concrete articles

20180215072

2018-08-02

Devices and processes for making concrete articles

20150113913

2015-04-30

Hollow structure, and preparation method thereof

20140208665

2014-07-31

Production of a tower

20130026162

2013-01-31

PRECAST CONCRETE METER PIT AND APPARATUS FOR MAKING SAME

20100178373

2010-07-15

Apparatus and method for protecting lined concrete pipe during the manufacturing process

#10

20090178365

2009-07-16

METHOD OF FABRICATING A PRECAST CONCRETE METER PIT

#11

20090084793

2009-04-02

Method for making precast concrete meter pit

#12

20060169868

2006-08-03

Precast concrete meter pit and method and apparatus for making same

#13

20050098705

2005-05-12

Method and facility for the automatic production of hollow bodies from mixed material