CH1054A
(en )
1889-08-31
Electrohephaest, that is to say, a new device for working metals by the direct application of an electric current
FR1335812A
(en )
1963-08-23
Current generating device for electric arc welding
FR1398933A
(en )
1965-05-14
Spray oil generator apparatus for metalworking by cutting tools
CH1697A
(en )
1890-04-15
Apparatus for riveting metals by electricity
CH1856A
(en )
1890-05-31
Apparatus for producing and regulating electric currents applicable to electrical metalworking
CH1360A
(en )
1889-11-16
Advanced device for the rhythmic production of electric currents
CH1698A
(en )
1890-04-15
Apparatus for welding by electricity
FR519256A
(en )
1921-06-07
Electric arc welding device
FR27043E
(en )
1924-03-26
Device for supplying electric welding stations by direct current arc
FR526669A
(en )
1921-10-12
Method for varying a direct current according to a nonlinear function of another direct current
FR884035A
(en )
1943-07-30
Starting rheostat for direct current electric motor
FR526693A
(en )
1921-10-12
Improvements to generators for electric arc welding
FR870179A
(en )
1942-03-04
Method for operating several machines or electrical devices requiring short pulses of current by means of a common power source
FR464144A
(en )
1914-03-13
Electric current intensity limitation device
FR885086A
(en )
1943-09-03
Acetylene generator device for powering engines
FR541281A
(en )
1922-07-25
Arrangement for phase regulation in alternating current electric motive power installations
FR357880A
(en )
1906-01-18
Method for working metals by means of an alternating current electric arc
FR603162A
(en )
1926-04-10
Control transformer for electric arc welding using alternating current
CH77099A
(en )
1918-08-01
Appliance for cooking by electricity
CH12575A
(en )
1897-01-15
Advanced apparatus for electrically depositing metals
CH6526A
(en )
1893-09-15
Cicuit for the production of heat by electric current
FR502453A
(en )
1920-05-15
Device for electrical actuation of signals
FR597569A
(en )
1925-11-24
Constant power dynamo for direct current arc welding
FR535578A
(en )
1922-04-18
Improvements to electric current switches or distributors for electric ignition devices
FR520108A
(en )
1921-06-21
Device for strengthening the ignition spark of spark plugs connected to a source of electric current