Animal husbandry – Feeder or waterer – Trough or multiple station type
Patent
1989-08-01
1991-06-18
Largen, James R.
Animal husbandry
Feeder or waterer
Trough or multiple station type
Patent
active
D03176665
REFERENCES:
patent: D236012 (1975-07-01), Crawford
patent: D281027 (1985-10-01), Hisken et al.
patent: 2528742 (1950-11-01), Coffing
patent: 4249483 (1981-02-01), Sobky
patent: 4450790 (1984-05-01), Stansbury, Jr.
patent: 4617874 (1986-10-01), Zammarano
patent: 4671210 (1987-06-01), Robinson et al.
patent: 4805560 (1989-02-01), Knego et al.
Largen James R.
MacCormac Cathy Anne
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