Ladas & Parry
Modular concrete form
 A modular form includes form plates in edge-to-edge contiguity, fasteners provided along adjacent longitudinal sides of the plates to fasten releaseably the form plates, reinforcement channel pieces attached detachably to the form plates along the transverse sides thereof, and trussed backing members extending longitudinally between the channel pieces, each of the trussed backing members having two opposite joint ends, the joint ends being detachably connected to the channel pieces. 
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E04G E04G
inventional inventional
Yuan-Ho
Lee