CH79364A
(en )
1919-04-01
Amalgamation process of a weld on a tinned part, in order to allow the separation of the welded parts
FR501765A
(en )
1920-04-23
Improvements in the purification of metallic solutions
FR502892A
(en )
1920-05-28
Special steel manufacturing process
USD54346S
(en )
1919-12-23
Design for a motorcycle
FR23662E
(en )
1921-12-15
Process for melting and treating metals, metal alloys and their combinations with metalloids
FR496633A
(en )
1919-11-12
Improvements in metal shearing processes
FR490014A
(en )
1919-03-28
Process for the separation of nickel in nickel mattes containing copper
FR427300A
(en )
1911-07-31
Improvements to the metal welding process
CH79621A
(en )
1918-12-16
Food can with welded frame seam
CH81151A
(en )
1919-10-16
Process for manufacturing a weld
DK23517C
(en )
1918-09-16
Mudguard for Bicycles and Motorcycles.
FR527424A
(en )
1921-10-25
Improvements to processes for the recovery of solder, tin, lead as well as tin from soldered iron articles and tinplate waste
FR492486A
(en )
1919-07-09
Improvements relating to the welding of different metals intended to form a compound ingot
CA183722A
(en )
1918-04-23
Ox-acetylene cutting and welding torch
ES68499A1
(en )
1919-01-01
A procedure for welding glass or crystals with the possibility of easily desoldering them without breaking, cutting or deforming them.
GB189516569A
(en )
1896-08-29
Improvements in the Manufacture of Electrodes for Voltaic Batteries.
FR504376A
(en )
1920-07-02
Improvements in metal cutting by the oxyacetylene torch process or any similar process
FR495217A
(en )
1919-10-02
Improvement in the electric welding process
CA188413A
(en )
1919-01-28
Metal tie
CA182181A
(en )
1918-02-12
Metal tie
CA186220A
(en )
1918-08-27
Metal tie
CA186420A
(en )
1918-09-03
Machine for sawing metal tubes
CA185436A
(en )
1918-07-09
Metal alloy
FR489294A
(en )
1919-01-11
Improvements in metal wheels
CA185183A
(en )
1918-06-25
Soldering iron for caps