B28B21/94 - CPC Classification Index

ClassID:

47627 ⎘

B28B21/94 - CPC Classification

Classification description:

Methods or machines specially adapted for the production of tubular articles; Methods or apparatus for treating or reshaping for impregnating or coating by applying liquids or semi-liquids

Recent Application in this class:

20170106562

2017-04-20

Method and apparatus for producing a sewer pipe element

20160214275

2016-07-28

Method and device for manufacturing a canal component

20110318446

2011-12-29

Method And An Apparatus For The Manufacture Of Concrete Pipes

20060033227

2006-02-16

Method and an apparatus for the manufacture of concrete pipes

15395658

2019-11-19

Method of making ceramic composite bearings