Process of manufacture of forced pipings made of precompressed concrete, and relative equipment

Process of manufacture of forced pipings made of precompressed concrete, and relative equipment

United States Patent 2771655

US Patent References:
Process for the production of tubular objects of prestressed concrete
2585446

Concrete pipe mold
2579801

Process for the manufacture of molded pieces or bodies from mortars or concrete
2052818

Method and apparatus for the manufacture of hollow bodies of reenforced concrete
2048253

Inventors:

Luigi, Nervi Pier

Publication Date:

11/27/1956

Export Citation:

Assignee:

Luigi, Nervi Pier

Primary Class:

264/228

Other Classes:

264/314, 425/405.100, 264/256

International Classes:

B28B21/60; B28B21/00

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