by reciprocating plunger

Full Title

Producing shaped articles from the material by using presses; Presses specially adapted therefor > wherein the material is extruded > by reciprocating plunger

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

WORKING CEMENT, CLAY, OR STONE

Subclass:

SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER