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Class Information
Number:
968/819
Name:
Horology
>
Apparatus for producing preselected time intervals for use as timing standards (generating clock signals for electric digital computers g06f 1/04; regulating frequency in general h03c, l) [g04f 5/00]
>
Metronomes (periodic signalization by acoustic signals in general subclass 218) [g04f 5/02]
> Mechanic metronomes [g04f 5/02b]
Description:
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4629331
Windable clockwork for a metronome
Dec. 16, 1986
4237549
Metronome
Dec. 2, 1980
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