发明名称 PRINTOUT DRUM
摘要 A printout drum in which a metal tubular member carrying a plurality of characters on its outside surface has a centrally positioned shaft which is rigidly fastened to the tubular member by means of a hardenable resinous filler material filling at least a portion of the tubular member.
申请公布号 US3693544(A) 申请公布日期 1972.09.26
申请号 USD3693544 申请日期 1970.04.02
申请人 CHARLES J. TRZYNA;ELECTRONIC PRECISION IND. CORP. INC. 发明人 CHARLES J. TRZYNA
分类号 B41J1/32;G06K15/06;(IPC1-7):B41F13/10 主分类号 B41J1/32
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