CH27228A
(en )
1903-12-15
Device for cleaning waste water
CH25844A
(en )
1903-06-30
Device for cleaning floors
CH27163A
(en )
1903-12-15
Device for sterilizing liquids
CH65742A
(en )
1914-07-16
Device for purifying waste water
CH29642A
(en )
1904-09-15
Device for permanent disinfection
CH31290A
(en )
1905-03-15
Device for cleaning floors
CH23410A
(en )
1902-11-30
Facility for the hygienic removal of rubbish
CH48232A
(en )
1910-10-01
Process and device for the purification of waste water
AT26130B
(en )
1906-10-25
Process for the treatment of household waste and street sweepings.
FR321408A
(en )
1903-01-09
Water purifier
CH31398A
(en )
1905-03-31
Device for processing meadows
CH34716A
(en )
1906-05-31
Device for moving ice floes
CH30622A
(en )
1905-01-15
Device for fastening hoses to pipes
AT4841B
(en )
1901-08-10
Device for cleaning dirty and waste water.
FR4576E
(en )
1905-08-29
Water filtration system
CH38047A
(en )
1907-08-31
Device for taking basic samples from water bodies
CH13468A
(en )
1897-07-15
Device for field irrigation
FR326374A
(en )
1903-05-23
Device for cleaning drain pipes
AT27644B
(en )
1907-02-25
Process for cleaning raw viscine from Ilex species.
CH31362A
(en )
1905-03-31
Device for conveying away the condensed water
CH8048A
(en )
1894-08-15
Device for the automatic disinfection of water closets
CH34935A
(en )
1906-06-15
Device for cleaning bottles
CH27853A
(en )
1904-02-29
Device for trimming linoleum
CH33879A
(en )
1906-01-31
Device for connecting pipes
CH64943A
(en )
1914-05-16
Continuous process and device for purifying waste water