Passage device for cattle

Animal husbandry – Waste toilet or related device – Walled receptacle; e.g. – litter box – etc. – containing...

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49 49, A01K 2900

Patent

active

048133795

ABSTRACT:
A passage device for cattle comprising an opening closeable by two doors hinged around vertical hinge axes on either side of the opening. As viewed from the space accessible via the passage device, one door is openable only outwardly and the other door only inwardly.

REFERENCES:
patent: 3079711 (1963-03-01), Turner
patent: 3222805 (1965-12-01), Hansen
patent: 3874118 (1975-04-01), Robinson

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