CH1876A
(en )
1890-05-31
Sophisticated settling device intended particularly for water purification
CH990A
(en )
1889-08-26
Apparatus intended for industrial water purification
CH2207A
(en )
1890-09-15
Dervaux purifier-settler for water purification
FR321516A
(en )
1903-01-12
A device intended to purify water by electricity
CH3840A
(en )
1892-01-15
Enrichment apparatus for natural lime phosphates
ES11495A1
(en )
1891-01-16
"Una Romana" of his invention.
CH58928A
(en )
1913-07-01
Waste water purification device
FR13647E
(en )
1911-05-19
Purification device for all waste water
FR17710E
(en )
1913-11-13
Purification device for all waste water
FR468763A
(en )
1914-07-16
Device for the purification of waste water
CH2380A
(en )
1891-03-31
Brunnhofer's decanter or demaculator
CH760A
(en )
1889-07-05
New improved device system for spraying or reducing mineral or other substances
CH2382A
(en )
1890-10-31
Universal newspaper holder
FR385573A
(en )
1908-05-16
Biological purification device for waste matter, sewage, etc.
FR326434A
(en )
1903-05-27
Sterilizer-antiseptic device for use by hairdressers
CH3546A
(en )
1891-10-15
Improved tap system
CH3984A
(en )
1892-01-30
Clockwork wheel toothing machine
FR336883A
(en )
1904-03-19
Apparatus intended for the purification of the feed water of steam boilers
FR446383A
(en )
1912-12-03
Device intended for the purification and filtration of drinking and industrial water
CH3834A
(en )
1891-12-31
Disc water meter
CH4814A
(en )
1892-08-15
Device for the purification and filtering of industrial and domestic water
CH2220A
(en )
1890-09-15
Device to facilitate the swallowing of pills
CH3176A
(en )
1891-07-31
Device designed to refurbish files by electricity
CH8221A
(en )
1894-08-31
Advanced device for methodical softening of the fingers
CH1911A
(en )
1890-06-14
Advanced device for the purification of anhydrous double aluminum chlorides