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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0337110 (1982-01-05) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 20 인용 특허 : 3 |
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 con
A toroidal time piece comprising a body having opposed faces, means forming an aperture through each of said opposed faces to thereby provide a window through the time piece, said aperture results in each of said opposed faces assuming a boundary which extends about and defines the configuration of
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