FR1182470A
(en )
1959-06-25
Tank
CH356564A
(en )
1961-08-31
Device for treating blood with oxygen
CH371789A
(en )
1963-09-15
Electrolysis cell for water decomposition
CH485479A
(en )
1970-02-15
Device for the production of dispersions or solutions
AT199572B
(en )
1958-09-10
Rotating ventilation device for introducing oxygen into water or wastewater
CH408800A
(en )
1966-02-28
Device for introducing gases into liquids
CH397347A
(en )
1965-08-15
Device for sealing radial ball bearings
AT199571B
(en )
1958-09-10
Device for whipping oxygen or other gases into water, especially into waste water
BE600842A
(en )
1961-09-04
Electrochemical method and apparatus.
CH388758A
(en )
1965-02-28
Device for making lips in strip-shaped material
CH351620A
(en )
1961-01-31
Device for making copies
FR1147277A
(en )
1957-11-21
Advanced training in wassingues
CH356937A
(en )
1961-09-15
Device for determining the sludge content
CH355808A
(en )
1961-07-31
Device for reproducing images
AT205722B
(en )
1959-10-10
Device for roof ventilation
AT246068B
(en )
1966-03-25
Biological wastewater treatment plant
CH383890A
(en )
1964-10-31
Device for creating exercises
CH355868A
(en )
1961-07-31
Device for the electrical excitation of muscles
AT207503B
(en )
1960-02-10
Device for oxygen ventilation
AT210834B
(en )
1960-08-25
Water aerator
FR1151384A
(en )
1958-01-29
Improvements in sulfur treatment
AT199668B
(en )
1958-09-25
Device for hydraulic control of the liquid level in the condensate collector
FI32153A
(en )
1961-10-10
Method of treatment of waste water, in particular sewage
FR1147119A
(en )
1957-11-19
Improvements in water baths, especially laboratory equipment
CH340197A
(en )
1959-07-31
Process for sterilizing or purifying water