专利名称：Hammer mill发明人：HELMS; ROBERT D.申请号：US37958173申请日：19730716公开号：US3893632A公开日：19750708
摘要：The rotatable hammer assembly is enveloped by a screen assembly of screenelements held in position by screen retaining members having abutting ends hingedlyjoined, the other ends provided with manually operable latch means to secure the screenassembly in place about the hammer assembly.
申请人：HELMS; ROBERT D.
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