CH7655A
(en )
1894-05-31
Telescope with one eyepiece and double lens
CH6865A
(en )
1893-11-30
Night light
CH6249A
(en )
1893-07-31
Differential regulator with fixed light point
FR348470A
(en )
1905-04-14
Transparent image with apparent movements
CH28098A
(en )
1904-03-31
Telescope with rotatable objective reflector
CH5862A
(en )
1893-04-15
Light festons
FI483A
(en )
1893-10-20
Construction of the common store "Brokholmssko"
CH6575A
(en )
1893-09-30
Zither with adjustable manuals
FR343298A
(en )
1904-09-29
Optical instrument
ES14961A1
(en )
1893-10-16
Improvement in optical instruments.
CH45798A
(en )
1909-12-16
Basic rangefinder with two lenses and one eyepiece
CH31927A
(en )
1905-05-31
Sighting telescope
FR346075A
(en )
1904-12-31
Bifocal lens enhancements
CH7305A
(en )
1894-02-28
Barrel tap
FR349403A
(en )
1905-05-29
Compass
CH50722A
(en )
1911-07-01
Sighting device with telescope
CH7220A
(en )
1894-02-28
Storm lantern with round burner
FR347328A
(en )
1905-03-04
Helical track with light attractions
CH4722A
(en )
1892-07-15
Telescopic tripod
FR340444A
(en )
1904-07-06
Folding stereoscope with variable eyepiece spacing and variable focus
CH7776A
(en )
1894-06-15
Horizontal galvanometer with legal indications
AT41219B
(en )
1910-02-25
Basic rangefinder with two lenses and one eyepiece.
CH7791A
(en )
1894-06-30
Double telescope with increased distance between the objectives
CH7606A
(en )
1894-06-30
Stiffened hurricane lantern
ES31423A1
(en )
1903-06-01
A procedure for the construction of lenses with liquids for optics and other technical objects.