Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Patent
1988-08-05
1990-10-16
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Aural, i.e., audible
Patent
active
D03113507
REFERENCES:
patent: D266652 (1982-10-01), Nagel
patent: D268175 (1983-03-01), Kong
patent: 2634407 (1953-04-01), Johnson
patent: 3945717 (1976-03-01), Ryder et al.
patent: 4292664 (1981-09-01), Mack
patent: 4530039 (1985-07-01), Shin Shi
Burke Wallace R.
Jackson Marcus
Sanrio Company Ltd.
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