AT109642B
(en )
1928-05-10
Device for generating a directed, adjustable bias voltage on the auxiliary electrode of a discharge tube.
SU3886A1
(en )
1927-10-31
Device for protecting electric lamps from unscrewing
CH122650A
(en )
1927-10-01
Safety device on screw nuts.
AT126939B
(en )
1932-02-25
Device for generating a jet flame from an electric arc.
DK33361C
(en )
1924-06-16
Electrode for Generating Ultraviolet Healing Rays.
DK34944C
(en )
1925-08-31
Pipe Generator for Generating High Frequency Electrical Oscillations.
ES82384A1
(en )
1923-01-16
An acetylene gas generator apparatus.
ES93905A1
(en )
1925-09-01
An acetylene gas generator apparatus.
ES88204A1
(en )
1924-03-16
A perfected honing procedure, by means of the apparatus described.
DK33286C
(en )
1924-05-26
Apparatus for exerting an immediate electrical effect on the skin nerves.
ES81489A1
(en )
1923-03-16
An energy production apparatus.
ES82962A1
(en )
1923-03-16
An acetylene lamp.
ES94975A1
(en )
1925-12-16
Electron emitting apparatus.
DK30817C
(en )
1922-11-27
Apparatus for the production of bills of various lengths.
ES83583A3
(en )
1923-04-01
Improvements in the atmospheric pressure hammers-pylons.
ES94988A1
(en )
1925-12-16
A procedure for amplifying high-frequency electrical oscillations.
ES80973A1
(en )
1922-06-16
An apparatus for intermittent gas distribution.
DK36274C
(en )
1926-07-19
Procedure for the production of printing inks.
ES78148A3
(en )
1921-07-01
An acetylene generating apparatus.
ES104037A3
(en )
1927-10-01
An acetylene generator.
ES88240A1
(en )
1924-04-16
An injectable tube holder.
ES94553A1
(en )
1925-11-01
Discharge tube that carries more than three electrodes.
DK33637C
(en )
1924-09-08
Seed Sorting Procedure.
DK32175C
(en )
1923-08-27
Adjustable, double-sprung ambulance.
ES80531A1
(en )
1922-04-16
Perfected mechanical pencil.