CH3840A
(en )
1892-01-15
Enrichment apparatus for natural lime phosphates
CH990A
(en )
1889-08-26
Apparatus intended for industrial water purification
CH3823A
(en )
1891-12-15
Chronograph-observation counter
CH5749A
(en )
1893-03-15
System of apparatus for the production of ozone by electricity
CH3227A
(en )
1891-07-15
Device for elastic fastening of the dial in pocket watches
CH1876A
(en )
1890-05-31
Sophisticated settling device intended particularly for water purification
CH2113A
(en )
1890-07-31
Instrument for determining the specific gravity of liquids
CH2268A
(en )
1890-09-30
Apparatus for preventing pickpockets
CH3971A
(en )
1892-01-30
Adjustable teaching arch for the production of vaults and arches
CH3772A
(en )
1891-12-15
Apparatus for moistening fibrous materials
CH7006A
(en )
1893-12-30
Device to facilitate mountaineering
CH4194A
(en )
1892-03-31
Device for artificial ventilation of tunnels
CH3323A
(en )
1891-08-31
Advanced system of electricity meters
CH8019A
(en )
1894-08-15
Apparatus to illustrate the first calculation
CH3123A
(en )
1891-06-30
Electricity meter
CH4097A
(en )
1892-02-15
Electricity meter
CH3878A
(en )
1892-01-15
Advanced system of apparatus for producing perforated patterns
CH4216A
(en )
1892-03-31
Radir instrument
CH4198A
(en )
1892-03-15
Combined Guipure d'Art-Rideaux
CH9037A
(en )
1895-02-28
Device for turning off arched crown surfaces of transmission organs
CH4266A
(en )
1892-03-31
Device for locking clockworks
CH3336A
(en )
1891-10-31
Advanced instrument for measuring electricity
CH3585A
(en )
1891-10-31
Marking device for reed instruments
CH3705A
(en )
1891-11-30
Marking device for reed instruments
CH3884A
(en )
1892-03-31
Racket regulator