CH19231A
(en )
1900-06-15
Three lens system for photographic use
CH17174A
(en )
1899-04-30
Two lens systems for photographic use
CH21113A
(en )
1901-05-31
Reflector for photographic use
CH13233A
(en )
1897-05-31
Lens for photographic use
CH28364A
(en )
1904-04-30
Two lens systems for photographic use
CH18923A
(en )
1900-03-31
Lighting apparatus on cameras for photographic enlargements
CH21112A
(en )
1901-05-31
Gas exposure apparatus for photographic use
CH18365A
(en )
1899-12-15
Photographic film
CH14000A
(en )
1897-10-31
Copy frames for photographic purposes
CH29052A
(en )
1904-07-15
Tenter frames for photographic use
CH27941A
(en )
1904-03-15
Developing liquid containers for photographic copies
CH25144A
(en )
1903-04-15
Photographic bellows camera
CH24773A
(en )
1903-02-15
Photographic double lens
CH62601A
(en )
1913-12-01
Developing frames for photographic plates
CH6329A
(en )
1893-08-15
Triple lens for photographic lenses
CH26126A
(en )
1903-07-31
Bowl for photographic use
CH14174A
(en )
1897-10-15
Novel photographic positive images
CH19539A
(en )
1900-07-31
Diaphragm with variable rectangular aperture for lenses for photography and image projection
CH17991A
(en )
1899-09-30
Bridge for winding watches
FR345535A
(en )
1904-12-02
Self-detachable photographic films
FR3888E
(en )
1905-03-20
Self-detachable photographic films
DK2662C
(en )
1899-11-20
Procedure for Plastic Copying of Physical Forms by Photographic Way.
ES26505A1
(en )
1900-10-01
An apparatus for washing photographic plates or films.
CH28921A
(en )
1904-06-30
Developing tray for photographic plates
FR344299A
(en )
1904-10-29
Photographic film developing machine