B28B21/04 - CPC Classification Index

ClassID:

47572 ⎘

B28B21/04 - CPC Classification

Classification description:

Methods or machines specially adapted for the production of tubular articles by casting into moulds by simple casting, the material being neither positively compacted nor forcibly fed

Recent Application in this class:

20240093492

2024-03-21

PRECAST COLUMN AND METHOD OF MANUFACTURING THE SAME

20230158709

2023-05-25

SYSTEM AND METHOD FOR PRODUCING CONCRETE PRODUCTS BY A CASTING METHOD

20210251294

2021-08-19

INDUCTION HEATING SYSTEM AND HEATER

20190039261

2019-02-07

System and method for producing concrete products by a casting method

20150246460

2015-09-03

System and method for producing tubular concrete products

19202064

2025-09-09

Lightweight aggregate-based non-steam-cured high-performance pipe culvert and preparation method thereof