Measuring – testing – or signalling instruments – Security or signal instrument or casing – Visual
Patent
1988-02-25
1990-09-18
Burke, Wallace R.
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Visual
Patent
active
D03106420
REFERENCES:
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: 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 Anti-Skid Base (no date) Prior Art.
Burke Wallace R.
DaRin Edward J.
Jackson Marcus
Traffix Devices Inc.
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