CH217058A
(en )
1941-09-30
Circuit switch.
CH217056A
(en )
1941-09-30
Circuit switch.
DK67314C
(en )
1948-08-02
Procedure for the production of particularly strong bookbinders.
DK65543C
(en )
1947-08-25
Method for Manufacturing Insulated Mounted Coal Switches.
CH237887A
(en )
1945-05-31
Telecommunications installation.
CH211367A
(en )
1940-09-15
Multiple switches.
CH218824A
(en )
1941-12-31
Installation auto switch.
CH227863A
(en )
1943-07-15
Installation switch.
DK63428C
(en )
1945-04-23
Procedure for Manufacturing Ferraricement.
DK64686C
(en )
1946-08-12
Procedure for Manufacturing Lynlaase.
DK59225C
(en )
1941-11-24
Process for the preparation of alkylated 2-dialkyl-6-oxychromans.
CH209226A
(en )
1940-03-31
Automatic switch.
DK59220C
(en )
1941-11-17
Procedure for Manufacturing Clay Products.
DK59299C
(en )
1941-12-15
Selector for electrical connection systems.
CH212027A
(en )
1940-10-31
Disconnector.
DK64195C
(en )
1945-12-27
Procedure for Making Enamel.
DK69288C
(en )
1949-05-30
Method for manufacturing spark plug insulators.
DK74094C
(en )
1952-05-05
Method for making crystal contacts.
DK59064C
(en )
1941-09-29
Procedure for the Production of Aneurin.
DK63319C
(en )
1945-03-26
Procedure for Manufacturing Building Elements.
GR8214B
(en )
1939-05-19
AUTOMATIC ELECTRIC SWITCH.
DK62993C
(en )
1944-12-11
Installations for the electric operation of ships.
DK59177C
(en )
1941-11-03
Procedure for Manufacturing Boxes.
DK58109C
(en )
1940-10-28
Rail for Skylight Constructions.
DK70221C
(en )
1949-11-21
Method for making rennet.