发明名称 Toroidal time piece
摘要 A toroidal time piece for indicating the time of day. The toroidal time piece comprises a body having opposed faces with there being a relatively large window formed through the body. Each of the opposed faces has a boundary which extends about and defines the configuration of the window and the configuration of a peripheral edge of the body. The body and the window take on various different configurations to impart different artistic appearances into the time piece.
申请公布号 US4473304(A) 申请公布日期 1984.09.25
申请号 US19820337110 申请日期 1982.01.05
申请人 KETNER, EUGENE N. 发明人 KETNER, EUGENE N.
分类号 G04B19/04;G04B45/00;(IPC1-7):G04B19/00;G04B37/00 主分类号 G04B19/04
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