Animal husbandry – Waste collector
Patent
1985-03-08
1990-09-11
Largen, James R.
Animal husbandry
Waste collector
119 1
Patent
active
D03105873
REFERENCES:
patent: D233771 (1974-11-01), Dirck
patent: D241755 (1976-10-01), Lowe, Jr.
patent: 1107206 (1914-08-01), Schwartzburg
patent: 2144329 (1939-01-01), Conlon et al.
patent: 3377990 (1968-04-01), Mitchell
patent: 3822671 (1974-07-01), Rosenberg
patent: 3890931 (1975-06-01), Sauer
patent: 3990397 (1976-11-01), Lowe, Jr.
patent: 4325325 (1982-04-01), Larter
patent: 4326481 (1982-04-01), Gruss
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