FR512843A
(en )
1921-02-01
Cement mixer
DK28938C
(en )
1921-12-05
Process for the Preparation of Hexamethylenetramine and Formaldehyde
DK28896C
(en )
1921-12-05
Procedure for the production of formaldehyde and methyl alcohol.
FR502259A
(en )
1920-05-08
scaffolding
CH86357A
(en )
1920-09-01
Stone dowels.
DK24827C
(en )
1919-08-04
Procedure for the manufacture of railings and the like.
DK29308C
(en )
1922-02-13
Impregnation compound and method of preparation.
DK28980C
(en )
1921-12-12
Method of Making Cement.
DK27026C
(en )
1920-12-20
Procedure for the manufacture of explosives.
DK28616C
(en )
1921-10-10
Method of Making Shaped Objects of Acetylcellulose.
DK28600C
(en )
1921-10-10
Method of Making Shaped Objects of Acetylcellulose.
DK28601C
(en )
1921-10-10
Method of Making Shaped Objects of Acetylcellulose.
DK28615C
(en )
1921-10-10
Method of Making Shaped Objects of Acetylcellulose.
DK28599C
(en )
1921-10-10
Method of Making Shaped Objects of Acetylcellulose.
DK29692C
(en )
1922-06-06
Method for Metallization of Wood.
DK25166C
(en )
1919-10-27
Procedure for Treatment of Bronsten.
DK24589C
(en )
1919-06-02
Procedure for Impregnation of Wood.
DK24885C
(en )
1919-08-18
Procedure for Impregnation of Wood.
DK30188C
(en )
1922-09-04
Procedure for Drying and Forming of Peat.
DK24290C
(en )
1919-03-31
Procedure for the Manufacture of Co-lacquer.
FI7860A
(en )
1919-12-12
Hänglås med ringbygel
DK27533C
(en )
1921-05-02
Ring anchor connection for pieces of wood.
FR497531A
(en )
1919-12-09
Removable propellant
DK28044C
(en )
1921-07-18
Procedure for the Preparation of Specific Vaccines.
DK30959C
(en )
1922-12-18
Procedure for the Preparation of Formaldehyde.