Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent
1977-01-10
1978-05-30
Shapiro, Jacob
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
47 31, 135 5R, E02D 300, A01G 1300
Patent
active
040916251
ABSTRACT:
A method which contemplates the application of a porous, fabric-like cover over bird-nesting areas at airports, to serve as a physical barrier preventing the natural use by the birds of any nominal vegetation which might grow beneath same, so as to effectively inhibit continued use of these areas for said bird-nesting activities. This, in turn, minimizes the hazards posed by birds to jet planes using the airport.
REFERENCES:
patent: 3465764 (1969-09-01), Huddle
patent: 3769747 (1973-11-01), Chapman, Jr.
patent: 4008730 (1977-02-01), Keklak et al.
Fontana Emilio
Fontana Rocco
Schiffelholz Walter
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