Dyform Concrete (Prestressed) Ltd.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Dyform Concrete (Prestressed) Ltd..The latest application filed is for "extrusion machine for making articles of cement-like material".
- Dyform Concrete (Prestressed) Ltd. - Prestressed
- Dyform Concrete Prestressed Ltd. - Vancouver British Columbia CA
| Patent | Date |
|---|---|
| Extrusion machine for making articles of cement-like material Grant 4,046,848 - Putti September 6, 1 | 1977-09-06 |
| Machine for extruding cement-like material into articles Grant 3,904,341 - Putti September 9, 1 | 1975-09-09 |
| Extrusion Machine For Making Articles Of Cement-like Material Grant 3,877,860 - Putti April 15, 1 | 1975-04-15 |
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