FR640502A
(en )
1928-07-16
Improvements in artillery equipment
DK54645C
(en )
1938-04-25
Snow Removal Machine from Railway Lines and Roads.
FR753528A
(en )
1933-10-18
Bogie
FR800361A
(en )
1936-07-03
Device for repairing tunnels on railways, roads, etc.
DK47165C
(en )
1933-04-03
Signal device for railway crossings.
DK50104C
(en )
1935-04-08
Device for securing railway crossings.
DK50103C
(en )
1935-04-08
Device for securing railway crossings.
FR823902A
(en )
1938-01-28
Point marker device, particularly for boules
FR807745A
(en )
1937-01-20
Block ties
CH169219A
(en )
1934-05-15
Railway train protection device.
DK48161C
(en )
1933-12-18
Protection device for railway crossings and the like.
FR828798A
(en )
1938-05-30
Compressor device for establishing or repairing roads
DK46598C
(en )
1932-12-05
Electrical Signal for Railroad Crossings.
DK42915C
(en )
1930-09-08
Automatic Signal for Railroad Crossings and the like.
FR721174A
(en )
1932-02-29
Device for dust removal, etc.
DK49376C
(en )
1934-10-08
Signal device for railway crossings and the like.
FR822758A
(en )
1938-01-07
Coating for roads
DK49069C
(en )
1934-07-30
Protection signaling system at Railway crossings.
DK50294C
(en )
1935-06-03
Signal system for railway crossings.
DK51119C
(en )
1936-01-06
Signal system for railway crossings.
DK50264C
(en )
1935-05-20
Signal system for railway crossings.
CH159024A
(en )
1932-12-15
Signaling device at level crossings.
DK52872C
(en )
1937-03-30
Signal system for securing railway crossings.
FR843901A
(en )
1939-07-12
Written notation system for all dance steps or the like
DK49281C
(en )
1934-09-17
Device for signaling systems at railway crossings.