FR823497A
(en )
1938-01-20
Device for the production of clods of earth for plants
DK55205C
(en )
1938-09-12
Growth Box for Plants.
DK54043C
(en )
1937-12-20
PROCEDURE FOR INDUSTRIAL CULTIVATION OF SEED PLANTS.
DK52400C
(en )
1936-12-07
Apparatus for Growing Plants of Seeds Using Nutrients.
FR766755A
(en )
1934-07-04
Physico-biological process influencing the development of plants
DK56476C
(en )
1939-07-24
Means for Accelerating the Growth and Development of Plants and for Refreshing Plants.
DK56062C
(en )
1939-04-17
Means of Promoting the Growth of Higher Order Plants.
CH164465A
(en )
1933-10-15
Flower planter.
DK55767C
(en )
1939-01-30
Means for Promoting Plant Growth.
DK56063C
(en )
1939-04-17
Means of Promoting the Growth of Higher Order Plants.
DK56011C
(en )
1939-04-03
Apparatus for Growing Seeds and Plants.
CH178977A
(en )
1935-08-31
Soil cultivation device.
FR791552A
(en )
1935-12-13
Recovery of agricultural fertilizers
FR776698A
(en )
1935-01-31
New plow for planting potatoes
FR782268A
(en )
1935-06-01
Planter plow
DK58751C
(en )
1941-06-09
Means for Promoting Plant Growth and Quality.
DK51290C
(en )
1936-02-17
Combined Seeder for Sowing Seeds and Fertilizers.
DK48183C
(en )
1933-12-27
Procedure for the Preparation and Use of a Nutrient Solution for Plant Growing.
DK57768C
(en )
1940-07-08
Procedure for Pre-Treatment of Seeds to Promote the Growth of the Vegetative System of Plants.
FR738217A
(en )
1932-12-22
Plant pot
CH166682A
(en )
1934-01-31
Device for influencing the soil of greenhouses for plant production.
CH175924A
(en )
1935-03-31
Plant support.
FR779281A
(en )
1935-04-02
Phosphate fertilizer
DK51569C
(en )
1936-04-27
Method and apparatus for producing seedlings and germinated seeds without the use of soil.
DK52767C
(en )
1937-03-01
Sowing seed.