Animal husbandry – Feeder or waterer – Bird feeder
Patent
1984-12-17
1987-10-13
Burke, Wallace R.
Animal husbandry
Feeder or waterer
Bird feeder
Patent
active
D02923343
REFERENCES:
patent: D109389 (1938-04-01), Beyrle
patent: D153272 (1949-04-01), Forner
patent: D175292 (1955-08-01), Austgen
patent: 276392 (1883-04-01), Gregory
patent: 2808807 (1957-10-01), Winton et al.
Burke Wallace R.
Eggink Anthony G.
Vinson Brian N.
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