Apparatus for forming hollow cylindrical pipes of reinforced con

Apparatus for making concrete pipe

Apparatus for making helmets

Apparatus for molding two-tone colored plastic shells

Apparatus for the construction of a low cost structure

Apparatus for the preparation of hollow plastic articles

Casting mould

Concrete wall forming panel with inflatable liner means

Container for forming voids in concrete

Core for use in casting hollow concrete slab and method of casti

Device for manufacturing boots and the like of elastomeric mater

Disposable inner mould for boats

Flange having an outer and an inner circumferential sealing face

Hollow formwork elements for producing concrete structures

Inflatable core for use in forming a thermal break in a metal fr

Inner inflatable and collapsible mold

Lens molding apparatus

Moulding apparatus

Pneumatic means for production of molded structures

Pneumatically controlled rigid core-former