| Patents for B28D 1 - Working stone or stone-like materials, e.g. brick, concrete, not provided for elsewhere; Machines, devices, tools therefor (14,003) | |
|---|---|
| 04/1976 | |
| 04/13/1976 | US3950202 Method of making a composite natural stone veneer product |
| 03/1976 | |
| 03/23/1976 | US3945285 Apparatus for sawing a panel into portions |
| 03/23/1976 | US3945151 Apparatus for removing mortar from used brick |