Closed enclosure used as greenhouse, cultivation frame or fish p

Details Closed enclosure used as greenhouse, cultivation frame or fish p Closed enclosure used as greenhouse, cultivation frame or fish p

1984-03-21

1986-07-01

Hafer, Robert A.

Plant husbandry

Cover, shade, or screen

Adjustable on supporting structure or having means allowing...

47 69, 47 28R, A01G 924

Patent

active

045972206

ABSTRACT:
A closed enclosure used as greenhouse, cultivation frame or fish pond and improving exploitation conditions, in which a structure covers totally living organisms to be protected or breeded either directly in the ground or in a culture medium placed in a box. At least one removable cover has edges defining at least one central recessed portion through which extends a multitude of holes or slits having dimensions calculated so as to provide a convenient watering in quantity and quality of liquid contained in the recessed portion towards the culture medium.

REFERENCES:
patent: 135173 (1873-01-01), Timby
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patent: 992529 (1911-05-01), Abraham
patent: 1621440 (1927-03-01), Stoddard
patent: 2011897 (1935-08-01), Hanck
patent: 2626483 (1953-01-01), Service
patent: 3106801 (1963-10-01), Risacher
patent: 3794294 (1974-02-01), Sherman
patent: 3939607 (1976-02-01), Spector
patent: 4160340 (1979-07-01), Levett
patent: 4222196 (1980-09-01), Pointon
patent: 4285162 (1981-08-01), Hilton
patent: 4369598 (1983-01-01), Beckwith
patent: 4392326 (1983-07-01), Boria
patent: 4406072 (1983-09-01), van Iterson

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