CH25312A
(en )
1903-04-30
Apparatus for electric metal spraying
FR339672A
(en )
1904-06-16
Electrical apparatus for vertical shaking soundings
CH24015A
(en )
1902-10-31
Improved apparatus for producing metal deposits by electrolysis
CH23938A
(en )
1902-10-15
Apparatus for making powdered copper by wet process
CH12245A
(en )
1896-11-15
Advanced apparatus for electrolysis
CH23841A
(en )
1902-09-30
Advanced device for hardening metals
CH21150A
(en )
1901-05-31
Device for converting alternating current into direct current
FR343303A
(en )
1904-10-01
Advanced device system for electrically heating liquids
CH24103A
(en )
1902-11-15
Apparatus for filling matchboxes
FR322902A
(en )
1903-02-19
Electric alarm for letterboxes
FR341691A
(en )
1904-08-17
Cylindrical apparatus for reproducing drawings by means of electric light
FR11654E
(en )
1910-04-13
Cylindrical apparatus for reproducing drawings by means of electric light
FR318000A
(en )
1902-10-03
CONDUCTOR SUPPORTS FOR ELECTRIC TRAMWAYS
CA54182A
(en )
1896-11-27
Device for forming calkson horse-shoes
CH11645A
(en )
1896-07-31
Apparatus for the pyrogenation of heavy hydrocarbons
FR358522A
(en )
1906-02-20
Device for the distribution of alternating electric current
CH23983A
(en )
1902-10-31
Device for pricking mechanically manufactured bottles
CH15584A
(en )
1898-06-30
Apparatus for the electrical treatment of gases
FR329041A
(en )
1903-07-24
Apparatus for welding pipes
FR383912A
(en )
1908-03-24
Device for electric welding of metals
FR321935A
(en )
1903-01-23
Apparatus for heating liquids by electricity
FR327462A
(en )
1903-06-24
Device for focusing turned objects
FR340125A
(en )
1904-06-27
Apparatus for producing oscillatory electric currents
FR349303A
(en )
1905-05-24
Electric device for tool control
CH15327A
(en )
1898-04-30
Advanced device for reading