|
GB775137A
|
|
Improvements in composite concrete blocks
|
|
GB712674A
|
|
Improvements in prestressed concrete piles
|
|
GB715719A
|
|
Improvements in prestressed concrete piles
|
|
GB697195A
|
|
Improvements in and relating to silos
|
|
GB705284A
|
|
Improvements in and relating to pressed concrete articles
|
|
US2615678A
|
|
Clamping device
|
|
GB609344A
|
|
Improvements relating to demoulding precast concrete articles
|
|
GB559599A
|
|
Improvements relating to walling for buildings and precast concrete units therefor
|
|
GB569537A
|
|
Improvements relating to pre-stressed concrete
|
|
GB567212A
|
|
Improvements relating to timber-faced concrete slabs or like building units
|
|
GB559320A
|
|
Improvements relating to surfacing concrete floors
|
|
GB539212A
|
|
Improvements in louvred ventilator cowls
|
|
GB520399A
|
|
Improvements in or relating to trenches or the like
|
|
GB513468A
|
|
Precast concrete bombproof shelters
|
|
GB501759A
|
|
Improvements in and relating to reinforced concrete beam and like members
|
|
GB498386A
|
|
Improvements relating to concrete slabs and to their manufacture
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