CH313E
(en )
1900-07-31
Watch for approximate time determination in the dark
CH19083A
(en )
1900-04-30
Watch for approximate time determination in the dark
CH22706A
(en )
1902-03-15
Time-setting device in watches
CH13632A
(en )
1897-07-15
Device for operating the mobile dial in 24-hour watches
CH19840A
(en )
1900-09-30
Watch case middle
CH19325A
(en )
1900-06-30
Watch case
CH19544A
(en )
1900-07-31
Watch dial
CH18539A
(en )
1900-01-31
Watch racket
CH19006A
(en )
1900-04-15
Advanced watch
FR450941A
(en )
1913-04-07
Improvements in watches, clocks, etc., with 24-hour time system
CH20859A
(en )
1901-03-31
Device for adjusting the timer return on the barrel cover in Roskopf watches
GB189919583A
(en )
1900-09-22
Improvements in the Construction of Watches.
CH66542A
(en )
1914-09-16
Mechanism for setting the alarm hand in alarm clocks
FR496633A
(en )
1919-11-12
Improvements in metal shearing processes
FR454045A
(en )
1913-06-24
Developments in 24-hour time system watches
CH14267A
(en )
1897-10-31
Two-part pocket watch plate
CH18283A
(en )
1899-11-30
Device on pocket watches with two dials for setting one pair of hands independently of the other by turning the winding shaft
CH17671A
(en )
Advanced watch pendant
CH17744A
(en )
1899-08-15
Advanced watch pendant
CH17989A
(en )
1899-09-30
Advanced watch pendant
CH19545A
(en )
1900-07-31
Perfected braid watch case bezel
FR481659A
(en )
1917-01-05
Improvements in metal alloys
CH71714A
(en )
1916-02-01
Time-setting mechanism for watches
FR481917A
(en )
1917-01-31
Process for the precipitation of organic substances contained in sulphite solutions
CH66771A
(en )
1914-10-01
Watch allowing to read the legal time and the average time for any locality