Animal husbandry – Feeder or waterer – Bird feeder
Patent
1989-09-25
1991-09-24
Zarfas, Louis S.
Animal husbandry
Feeder or waterer
Bird feeder
Patent
active
D03202909
REFERENCES:
patent: D251021 (1979-02-01), Blasbalg
patent: D252591 (1979-08-01), Hyde, Jr.
patent: D282019 (1985-12-01), Kilham
patent: 3568641 (1971-03-01), Kilham
patent: 4201155 (1980-05-01), Hyde, Jr.
patent: 4216742 (1980-08-01), Kirchhoffer
patent: 4318364 (1982-03-01), Bescherer
Duncraft Specialties for Birdfeeding Catalog; p. 12, item No. B12PK Feeder.
Doherty Robert J.
MacCormac CathyAnne
Zarfas Louis S,.
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