FR689682A
(en )
1930-09-10
Method of forging metals, in particular for the manufacture of brakes
FR728908A
(en )
1932-07-13
Process for the manufacture of metal sleepers
FR716659A
(en )
1931-12-24
Alloy for tools and working instruments, and method for its manufacture
FR710792A
(en )
1931-08-28
Process for the production of metal carbonyls
CH123017A
(en )
1927-10-17
Metal alloy for hydraulic machinery parts.
SU25686A1
(en )
1932-03-31
Method of making mastic models for metal castings
FR665760A
(en )
1929-09-23
Catalysts, in particular for the manufacture of ketones
FR663665A
(en )
1929-08-23
Process for the manufacture of forgings
FR715046A
(en )
1931-11-24
Process for the preparation of phosphates, in particular alkaline phosphates, from phosphorous metal combinations
FR717454A
(en )
1932-01-09
Advanced alloy, especially for bearings
FR715206A
(en )
1931-11-27
Process for the production of carbonyl metals
FR675259A
(en )
1930-02-07
Advanced process for the production of malleable metal pipes
FR755651A
(en )
1933-11-28
Welding process of metals, in particular non-ferrous metals
FR715512A
(en )
1931-12-04
Process for the preparation of metals and the manufacture of their alloys and combinations
FR721987A
(en )
1932-03-10
Process for the production of metals, metal mixtures, and metal alloys
FR683785A
(en )
1930-06-17
Improvements to the processes for the manufacture by pressing of tubes or metal envelopes
FR708259A
(en )
1931-07-22
Process for the manufacture of porous or non-porous metal parts
CA289702A
(en )
1929-05-14
Apparatus for processing rails, tools of steel alloys or iron
FR721158A
(en )
1932-02-29
Method for reinforcing the precious metal coating of metal objects, in particular cutlery
FR758659A
(en )
1934-01-22
Process for manufacturing ductile metal powder, in particular magnesium powder
FR707634A
(en )
1931-07-10
Metal casting process
FR725306A
(en )
1932-05-11
Process for forging light alloys
FR727883A
(en )
1932-06-25
Method and apparatus for manufacturing shaped metal parts by torch cutting
ES118549A1
(en )
1930-07-01
Rapid method of die casting of metal parts.
FR712462A
(en )
1931-10-02
Process for the production of castings from powdered metals