| Patents for B22C 7 - Patterns; Manufacture thereof so far as not provided for in other classes (3,230) |
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| 10/25/1977 | US4055214 Flash control molding for molds |
| 10/25/1977 | US4055213 Method for making patterns |
| 09/06/1977 | US4046579 Disposable pattern composition |
| 08/30/1977 | US4044815 Precision investment casting mold, pattern assembly and method |
| 08/23/1977 | US4043385 Molding apparatus |
| 08/23/1977 | US4043379 Method of making a mold |
| 07/19/1977 | US4036277 High speed method and apparatus for producing foundry molds |
| 07/12/1977 | US4035216 Method for bonding expanded polymeric parts |
| 06/07/1977 | US4027723 Molding apparatus including a flexible mold for making articles having radially inwardly extending projections on an interior surface |
| 06/07/1977 | US4027717 Method for forming a casting mold and a flexible pattern to be used therefor |
| 04/05/1977 | US4015654 Adjustable tooling method and apparatus for investment patterns |
| 03/29/1977 | US4014090 Pattern plates and method of making same |
| 03/08/1977 | US4010791 Method for cavityless casting employing a dual layer pattern coating |
| 01/18/1977 | US4003424 Method of making ductile iron treating agents |
| 12/21/1976 | US3998263 System to make metal casting molds |
| 12/14/1976 | US3996991 Investment casting method |
| 11/30/1976 | US3994333 Core blowing machine |
| 11/16/1976 | US3991809 Method of molding finger rings |
| 10/12/1976 | US3985176 Unitary pattern assembly method |
| 10/05/1976 | US3983922 Hollow foundry core moulding apparatus |
| 09/21/1976 | US3981344 Investment casting mold and process |
| 07/20/1976 | US3970138 Pattern device including an upper trough pattern for the manufacture of the upper part of a foundry mold |
| 06/22/1976 | US3964915 Investment wax |
| 06/22/1976 | US3964538 Core box mounting plates in a shell core machine |
| 06/01/1976 | US3959872 Method for producing a core form to be employed in the molding of a ball joint bearing |
| 05/04/1976 | US3954132 Manufacture of cast ferrous metal dies |
| 03/30/1976 | US3947842 Electro-optic matrix-type display panel incorporating optoelectronic addressing switches |
| 03/09/1976 | US3942583 Lost plastic pattern for casting |
| 02/24/1976 | US3939898 Mould manufacturing device |
| 01/20/1976 | US3933194 Pattern plate device for vacuum sealed molding |