DK32551C
(en )
1923-11-26
Method and Device for Wireless Transmission of Sound Using High Frequency Electrical Oscillations.
DK32304C
(en )
1923-09-24
Method and Apparatus for Transmitting Sound Vibrations.
AT96062B
(en )
1924-02-25
Device for the transmission of telephone and telegraphic signals by means of high frequency waves.
DK33502C
(en )
1924-08-04
Telephony device with high frequency oscillations.
DK24875C
(en )
1919-08-18
Device for generating high frequency electrical oscillations.
DK32296C
(en )
1923-09-24
Audio receiver for wireless Telegraphy and Telephony.
DK29113C
(en )
1922-01-02
Apparatus for the manufacture of oatmeal and the like.
DK32036C
(en )
1923-07-30
Device for Antennas for Wireless Telegraphy and Telephony.
DK26570C
(en )
1920-09-06
Apparatus for fast and accurate tuning of violins.
DK30278C
(en )
1922-09-18
Method and Apparatus for Developing Power.
DK33125C
(en )
1924-04-22
Transmission system for High Frequency Telegraphy and the like.
DK29392C
(en )
1922-02-27
Method and Apparatus for Reducing Atmospheric Interference by Receiving Radio Signals.
DK33138C
(en )
1924-04-28
Device for Combined Transmission and Receipt of Electrical Oscillations for Wireless Telephony.
DK28939C
(en )
1921-12-12
Procedure for the Manufacture of Nickel and Copper.
DK27478C
(en )
1921-04-25
Procedure and Apparatus for Making Imitations of Oak.
DK29434C
(en )
1922-04-10
Method and Apparatus for the Production of Ketones of Secondary Alcohols.
DK26339C
(en )
1920-07-26
Apparatus for mechanical removal of Kettle and Rust.
ES69916A1
(en )
1919-07-01
Methods and apparatus for radio telegraphic signals.
ES74292A1
(en )
1920-10-01
An improved procedure and its corresponding apparatus, to eliminate the disturbing vibrations of determined frequencies.
DK36042C
(en )
1926-05-25
Method and Device for Frequency Increase.
DK33746C
(en )
1924-10-06
Device for Transmitting Mechanical and Acoustic Oscillations.
DK28203C
(en )
1921-08-22
Skin and Skin Removal Procedure.
DK34386C
(en )
1925-04-14
Device for Distortion-Free Amplification of Sounds and Tones for Acoustic Cinematographic Purposes.
DK31049C
(en )
1923-01-02
Vibration apparatus, in particular for recording and generating sound waves.
DK32568C
(en )
1923-12-03
Procedure and Device for Affecting Incoming Wireless Signals.