FR540585A
(en )
1922-07-13
Hydrocarbon treatment process
FR577092A
(en )
1924-08-30
Wood treatment process to densify, preserve and decorate the wood
FR481688A
(en )
1917-01-05
Wood treatment process
FR500621A
(en )
1920-03-18
Process for the hardening of impregnable soft woods and their conservation
CH61496A
(en )
1913-10-01
Wood treatment process for its conservation
FR493559A
(en )
1919-08-13
Wood preservation process
FR532903A
(en )
1922-02-15
Acid treatment process for wood
CH55995A
(en )
1912-10-01
Wood hardening and preservation process
FR496579A
(en )
1919-11-11
Wood treatment process to make them soft and flexible
CH74124A
(en )
1917-01-16
Process for treating eggs with a view to their preservation
FR483242A
(en )
1917-06-13
Fuel treatment process
FR497280A
(en )
1919-12-02
Exotic wood veneer discoloration process
FR535648A
(en )
1922-04-19
Process for wood treatment
FR593390A
(en )
1925-08-21
Process for the treatment of construction timber to avoid subsequent shrinkage
FR484826A
(en )
1917-11-13
Method of treating structural timber and other similar materials with a view to their preservation
FR586856A
(en )
1925-04-04
Wood treatment process
CH78236A
(en )
1918-12-16
Process for the treatment of peat
CH79752A
(en )
1919-01-02
Process for the treatment of fungal diseases of plants
FR488116A
(en )
1918-09-05
Wood decoration process for woodwork and furniture
FR515556A
(en )
1921-04-04
Animal waste treatment process
FR493560A
(en )
1919-08-13
Treatment of kola nuts for conservation
FR556840A
(en )
1923-07-27
Charcoal treatment process
FR487008A
(en )
1918-05-29
Wood forging process
FR489121A
(en )
1918-12-20
Wood frame construction process
FR413387A
(en )
1910-08-06
Wood hardening and preservation process