Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1988-02-24
1990-07-31
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
Patent
active
D03095851
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patent: D229784 (1974-01-01), Carter
patent: D237473 (1975-11-01), Fitch
patent: D243073 (1977-01-01), Kulp et al.
patent: D243074 (1977-01-01), Kulp et al.
patent: D243075 (1977-01-01), Kulp et al.
patent: D276142 (1984-10-01), Dobrin
patent: D279275 (1985-06-01), Cory
patent: 3952690 (1976-04-01), Rizzo et al.
patent: 4083033 (1978-04-01), Kulp et al.
patent: 4475101 (1984-10-01), Kulp et al.
patent: 4710053 (1987-12-01), Kulp et al.
Lukens/Signal Literature on Two-Piece Breakaway Traffic Channelizer with Waffle Pattern Bottom (no dates), prior art.
Lukens/Flex-O-Lite Literature on One Piece Barrel with Skid Resistant Bottom (no date), prior art.
Lukens/Flex-O-Lite Two Piece Traffic Channelizer with Antiskid Base (no date), prior art.
Burke Wallace R.
DaRin Edward J.
Jackson Marcus
Traffix Devices Inc.
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