Title:
TIMER DEVICE
United States Patent 3520124
US Patent References:
Device for indicating exposure time of printed pages
- - 2337534
Device for indicating when the contents of containers have been nearly exhausted
- - 2671424
/3018611.html
- - 3018611
FRUIT RIPENESS TELLTALE
- - 3420635
Device for indicating exposure time of printed pages
- - 2337534
Device for indicating when the contents of containers have been nearly exhausted
- - 2671424
/3018611.html
- - 3018611
FRUIT RIPENESS TELLTALE
- - 3420635
Inventors:
Myers, Sumner
Publication Date:
07/14/1970
View Patent Images:
Export Citation:
Assignee:
Sumner, Myers
Primary Class:
Other Classes:
422/56, 116/206, 422/57
International Classes:
G07C1/30; G07C1/00; G04F1/00; G01D21/00
Foreign References:
| GB191002432A |