MOULD FOR MANUFACTURING REINFORCED-CONCRETE TUBULAR ARTICLES Russian patent published in 1995 - IPC

Abstract RU 2026782 C1

FIELD: construction. SUBSTANCE: the upper portion of a tray has heat-and-oil resistant sealing elastic members of U-shaped cross-section and made with circular grooves for placing the latter, diameters of circular grooves being equal to diameters of core and shell. EFFECT: improved quality. 2 cl, 3 dwg

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RU 2 026 782 C1

Authors

Vitman Karl Jakovlevich

Dates

1995-01-20—Published

1991-04-17—Filed