FORMS FOR OPENINGS Russian patent published in 1996 - IPC

Abstract SU 1780352 A1

FIELD: construction; equipment of openings in erection of walls from cast-in-situ concrete and reinforced concrete. SUBSTANCE: forms for openings consist of L-shaped semiframes whose posts have oval holes to receive ends of screw pair interconnecting semiframes on which nuts engageable with screws are installed. EFFECT: improved convenience in operation. 2 cl, 3 dwg

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SU 1 780 352 A1

Authors

Kopychko A.A.

Mal'Ko N.K.

Ivannikov N.S.

Dates

1996-05-20—Published

1990-05-03—Filed