Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1975-09-12
1977-06-21
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
D1006
Patent
active
D02447649
REFERENCES:
patent: 2981149 (1961-04-01), Stolarczyk et al.
patent: 3693511 (1972-09-01), Medynski
Burke Wallace R.
D. Swarovski & Co.
Kemper Catherine
Toren David
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