DK54199C
(en )
1938-01-17
Core for the production of hollow concrete stands.
DK55896C
(en )
1939-02-27
Machine for Rolling Hollow Cylindrical Bodies of Fibrous Cement.
FR775669A
(en )
1935-01-07
Hollow brick
FR805130A
(en )
1936-11-12
Tubular brick
DK57871C
(en )
1940-08-05
Procedure for the production of lightweight concrete.
FR798138A
(en )
1936-05-09
tubular scaffolding
ES142655A1
(en )
1936-09-16
Procedure for manufacturing hollow blocks of concrete or similar.
AT141308B
(en )
1935-04-10
Hollow stone beams.
DK57441C
(en )
1940-04-01
Hollow stone for formwork tires.
DK56606C
(en )
1939-08-28
Method for the production of therapeutically useful swelling agents.
DK55838C
(en )
1939-02-20
Process for the Preparation of 4-Alkyl-5-hydroxyalkylthiazoles.
DK55347C
(en )
1938-10-17
Procedure for the manufacture of hollow bodies of cellulose products.
DK56214C
(en )
1939-05-22
Method of Making Cement.
DK54611C
(en )
1938-04-19
Procedure for the production of vitamin-active butter color.
CA357998A
(en )
1936-05-19
Hollow cement block
DK52912C
(en )
1937-04-05
Procedure for Manufacturing Reinforced Masonry.
DK49963C
(en )
1935-03-04
Device for Presses for the production of hollow bricks.
DK55556C
(en )
1938-12-12
Procedure for Making Soap.
DK53170C
(en )
1937-06-07
Procedure for the production of bleaching earth.
DK53707C
(en )
1937-10-11
Method for Manufacturing Multiple Hollow Glass Building Blocks.
DK53180C
(en )
1937-06-07
Procedure for the Construction of Concrete Houses.
DK58563C
(en )
1941-04-07
Procedure for the production of hop extract.
DK48479C
(en )
1934-03-05
Procedure for the production of ethyl alcohol.
DK51588C
(en )
1936-05-04
Process for the Production of Dihydromorphinones.
DK58145C
(en )
1940-11-11
Process for the Preparation of N-Pyrimidylalkyl-thiazolium compounds.