DK39249C
(en )
1928-09-17
Impact Electrode and Electrical Purification System for Gases.
ES91683A1
(en )
1925-04-01
Precipitation electrode for electrical gas purification.
ES91930A2
(en )
1925-07-01
Precipitation electrode for electrical gas purification.
ES103455A1
(en )
1927-08-16
Precipitation electrode for electrical gas purification.
ES86511A1
(en )
1923-10-16
Some electrodes for rare gas protection devices.
DK37419C
(en )
1927-05-02
Procedure for Electrical Purification of Tar and Aqueous Gases.
DK39582C
(en )
1928-12-10
Electric Gas Purification System with Large Surface Precipitation Electrodes.
ES95180A1
(en )
1925-12-16
An oxygen or other gas apparatus.
ES93165A1
(en )
1925-06-16
Devices for the electrical purification of gases.
ES103582A1
(en )
1927-08-16
Precipitation electrode for the electric purification of gases.
DK35603C
(en )
1926-02-08
Grips for Tovpostvogne.
DK34594C
(en )
1925-06-08
Electrode for electric arc welding.
DK33875C
(en )
1924-11-17
Procedure for Separating Zircon and Hafnium.
DK36903C
(en )
1926-12-13
Procedure for Separating Zircon and Hafnium.
DK37002C
(en )
1927-01-03
Procedure for Separating Zircon and Hafnium.
DK36194C
(en )
1926-07-05
Electric Welding Apparatus.
DK41528C
(en )
1930-01-27
Electric Welding Apparatus.
CH138309A
(en )
1930-02-28
Procedure to avoid corrosion on amalgamated electrodes.
DK35808C
(en )
1926-03-29
Telegraph system.
DK36171C
(en )
1926-06-28
Electrical Signal System.
DK38905C
(en )
1928-06-25
Electrical Signal System.
DK37000C
(en )
1927-01-03
Telephone system.
DK38124C
(en )
1927-11-07
Telephone system.
DK39070C
(en )
1928-07-30
Telephone system.
ES86793A1
(en )
1923-11-16
An electric ear vibro-masseur.