EP 0399961 A1 19901128 - Stirrup for use in building for the attachment and stretching of the string used as reference for the correct alignment of walls.
Title (en)
Stirrup for use in building for the attachment and stretching of the string used as reference for the correct alignment of walls.
Title (de)
Haken für Bauarbeiten zum Richten und Spannen von Richtschnüren zum Ausrichten von Mauern.
Title (fr)
Etrier d'attache et de tension de fil de référence pour l'alignement correct de murs, employé dans le bâtiment.
Publication
Application
Priority
IT 53989 U 19890526
Abstract (en)
This invention concerns a square for use in the building trade for hooking and stretching the string used by bricklayers as reference for levelling planes.
IPC 1-7
IPC 8 full level
E04G 21/18 (2006.01)
CPC (source: EP)
E04G 21/1825 (2013.01)
Citation (search report)
- [X] US 3555688 A 19710119 - SMATHERS THOMAS C
- [X] US 3765096 A 19731016 - SIMMONS W, et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR LI LU NL SE
DOCDB simple family (publication)
EP 0399961 A1 19901128; IT 216329 Z2 19910717; IT 8900539 V0 19890526
DOCDB simple family (application)
EP 90830216 A 19900517; IT 53989 U 19890526