US4275851A Ore sample crusher Google Patents
US4275851A US06/072 516 US7251679A US4275851A US 4275851 A US4275851 A US 4275851A US 7251679 A US7251679 A US 7251679A US 4275851 A US4275851 A US 4275851A Authority US United States Prior art keywords anvil frame jaw ore secured Prior art date 1979 09 04 Legal status The legal status is an assumption and is not a legal conclusion