FR787721A
(en )
1935-09-27
Measuring device
FI19997A
(en )
1943-12-31
Angle measuring device for use in connection with topographic maps
FR818850A
(en )
1937-10-04
Gyromagnetic compass
CH195987A
(en )
1938-02-28
Measuring and marking device.
FR764623A
(en )
1934-05-25
Improvements in electrical measuring devices
FI19231A
(en )
1942-09-15
Angle measuring device for both field measurement and map work
FI18358A
(en )
1939-01-20
Device for determining topographic direction and distance
FR801144A
(en )
1936-07-28
Watchmaking device with geographical coordinates
FI19965A
(en )
1944-03-10
Angle measuring device for compasses
FR809542A
(en )
1937-03-04
Relief map
FR815787A
(en )
1937-07-22
Geodetic measuring instrument
FI16121A
(en )
1934-10-12
Angle measuring device for compass
SE93186C1
(en )
1938-11-05
FILLING FUNTER WITH LIQUID LEVEL INDICATOR
AU105434B2
(en )
1938-10-20
Improvements in and relating to apparatus for measuring distances and indicating routes on maps or charts
FI19966A
(en )
1944-03-10
Device in compasses
FR759560A
(en )
1934-02-05
Liquid measuring device
SE97171C1
(en )
1939-10-24
Calculation device for radiogoniometric navigation
FR802807A
(en )
1936-09-16
Improvements to maps or topographical documents
FR765065A
(en )
1934-06-01
Instrument for drawing and measuring angles for navigation
FR811318A
(en )
1937-04-12
Angle protractor tee
CA355724A
(en )
1936-02-04
Liquid measuring device
FR822472A
(en )
1937-12-30
Mobile tolerance measuring instrument
AU525637A
(en )
1938-10-20
Improvements in and relating to apparatus for measuring distances and indicating routes on maps or charts
FI18021A
(en )
1938-04-29
Compass stand
FI15289A
(en )
1933-07-07
Breathing capacity measuring device