Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1990-06-27
1992-10-06
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
Patent
active
D03299902
REFERENCES:
patent: D59809 (1921-11-01), Benham
patent: D89670 (1933-04-01), Reichhardt
patent: D270576 (1983-09-01), Thompson
patent: 1926224 (1933-09-01), Bergen et al.
patent: 2329557 (1943-09-01), Rolph
patent: 2432810 (1947-12-01), Ryder
patent: 4653955 (1987-03-01), Racs
Burke Wallace R.
Gilden Leon
Jackson Marcus
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