FR626013A
(en )
1927-08-25
Improvements to electrical contacts
DK34698C
(en )
1925-07-06
Apparatus for Converting Pressure Variations to Electrical Variations.
DK30713C
(en )
1922-11-20
Gas Production Apparatus.
DK36404C
(en )
1926-08-23
Apparatus for Converting Electrical Oscillations to Sound Waves.
DK39627C
(en )
1928-12-17
Device for Converting Electrical Oscillations to Mechanical Oscillations.
DK36669C
(en )
1926-10-18
Apparatus for Converting High Voltage DC to Lower Voltage DC.
DK33455C
(en )
1924-07-21
Branch for Electrical Installations.
DK34315C
(en )
1925-03-30
Apparatus for Softening Water.
DK35896C
(en )
1926-04-19
Apparatus for Softening Water.
DK41755C
(en )
1930-03-03
Device for Converting Electrical Oscillations to Mechanical.
DK33224C
(en )
1924-05-19
Apparatus for sound generation.
DK29149C
(en )
1922-01-09
Apparatus for Setting Up Lead Cable Boxes.
DK37502C
(en )
1927-05-23
Apparatus for Making Ceruts.
DK36674C
(en )
1926-10-18
Apparatus for Apparatus for Converting High Voltage DC to Lower Voltage DC.
DK34911C
(en )
1925-08-24
Apparatus for the production of steam by electricity.
ES81489A1
(en )
1923-03-16
An energy production apparatus.
DK40030C
(en )
1929-04-15
Apparatus for Manufacturing Screws.
DK32968C
(en )
1924-03-17
Apparatus for Raising Water.
DK35131C
(en )
1925-10-12
Pressure telegraph apparatus.
DK33340C
(en )
1924-06-10
Device by electrolytic Apparatus.
DK33736C
(en )
1924-10-06
Apparatus for flattening animals.
DK35948C
(en )
1926-05-03
Apparatus for Making Butter.
DK33923C
(en )
1924-12-01
Apparatus for Counting Electrical or Mechanical Impulses.
DK29477C
(en )
1922-04-18
Device for Pulling Wedges.
DK30817C
(en )
1922-11-27
Apparatus for the production of bills of various lengths.