Mineral supplement feeder

Details Mineral supplement feeder Mineral supplement feeder

1983-07-05

1985-12-31

Bullock, B. J.

Animal husbandry

Feeder or waterer

Bird feeder

D30 16

Patent

active

D02820170

REFERENCES:
patent: D27019 (1897-05-01), Leonard
patent: D196170 (1963-09-01), Fenton
patent: D232848 (1974-09-01), Barton
patent: D249898 (1978-10-01), Chaires
patent: D257794 (1981-01-01), Gunnarsson
patent: 2636474 (1953-04-01), Parker
patent: 2789532 (1957-04-01), Hoebing
patent: 2839028 (1958-06-01), Routh
patent: 3007443 (1961-11-01), Ryan
patent: 3066648 (1962-12-01), Kohlhauf
patent: 4129855 (1978-12-01), Rodrian

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