NON-DETACHABLE FORMWORK Russian patent published in 1994 - IPC

Abstract RU 2008417 C1

FIELD: construction. SUBSTANCE: L-shaped boards of formwork are provided with inner rigidly ribs, which are made cross-shaped and disposed on larger face of board. Depressions for receiving retainers are made in upper ends of boards, with depression dimension being in conformance with diameters of retainers. Lower ends of depressions are made in the form of ellipse oriented in longitudinal direction. EFFECT: increased efficiency and enhanced reliability in operation. 6 dwg

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RU 2 008 417 C1

Authors

Sgibnev V.A.

Dates

1994-02-28—Published

1991-05-14—Filed