DK68860C
(en )
1949-04-04
Procedure and apparatus for electro-optical tone recording in Braille.
DK69312C
(en )
1949-06-07
Procedure and apparatus for electro-optical tone recording in Braille.
DK62181C
(en )
1944-04-24
Briquette Procedure and Apparatus.
DK66382C
(en )
1948-03-01
Method and Apparatus for Erasing Magnetic Sound Records.
DK55822C
(en )
1939-02-13
Procedure and Apparatus for Recording Sound.
DK53798C
(en )
1937-11-01
Procedure and Apparatus for Constant Resistance in Electromagnetic Sound Recording Devices.
DK61022C
(en )
1943-06-15
Apparatus for Determining Conception Time and Redemption Day.
DK61054C
(en )
1943-06-21
Procedure and Apparatus for Drying Fuel.
DK65075C
(en )
1946-11-18
Method and Apparatus for Time Marking by Oscillograph Recordings.
DK65175C
(en )
1946-12-02
Method and Apparatus for Making Printed Envelopes.
DK67911C
(en )
1948-11-08
Method and apparatus for stereophonic sound recording or sound transmission and sound reproduction.
DK56158C
(en )
1939-05-08
Clay Procedure and Apparatus.
DK68909C
(en )
1949-04-11
Apparatus for mechanical tone recording in two tracks.
DK63803C
(en )
1945-08-13
Method and Apparatus for Impulse Giving.
DK55875C
(en )
1939-02-27
Procedure and Apparatus for Graveling of Roads.
DK58859C
(en )
1941-07-14
Method and Apparatus for Making Molds.
DK59951C
(en )
1942-07-13
Procedure and Apparatus for Growing Yeast.
DK60739C
(en )
1943-03-29
Sound reproducing apparatus.
DK62141C
(en )
1944-04-11
Procedure and Apparatus for Joining Film Pieces.
DK52145C
(en )
1936-09-14
Procedure and Apparatus for Recording Oscillations.
DK51614C
(en )
1936-05-11
Sound reproducing apparatus.
DK61272C
(en )
1943-08-30
Apparatus for Recording Tone Fluctuations.
DK64137C
(en )
1945-12-03
Apparatus for Making Butter in the Presence of Carbon Dioxide.
DK62510C
(en )
1944-07-31
Apparatus for receiving and recording telegraph signals.
DK47004C
(en )
1933-02-27
Apparatus for teaching arithmetic, reading and the like.