Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent
1977-12-21
1980-04-15
Lucas, Susan J.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Aural, i.e., audible
D1006
Patent
active
D02547295
REFERENCES:
patent: 3760411 (1973-09-01), Youhanaian
patent: 3879726 (1975-04-01), Sweany
Holman John Clarke
Lucas Susan J.
Star Seimitsu Kabushiki Kaisha
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