using manually-operated cable-pulled drag shovels

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Industry

CPC
B28C7/0823

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B28Stoneworking B28CPREPARING CLAY PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL B28C7/00Controlling the operation of apparatus for producing mixtures of clay or cement with other substances Supplying or proportioning the ingredients for mixing clay or cement with other substances Discharging the mixture

Current Industry

B28C7/0823using manually-operated cable-pulled drag shovels

Industries

Patents Grantslast 30 patents

Information Patent Grant
2504476
- Patent number 2,504,476
- Issue date Apr 18, 1950
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
2119780
- Patent number 2,119,780
- Issue date Jun 7, 1938
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
1340345
- Patent number 1,340,345
- Issue date May 18, 1920
- B28 - WORKING CEMENT, CLAY, OR STONE