CH2022A
(en )
1890-07-15
Apparatus for filtering liquids, known as Capillery Filter
FR328123A
(en )
1903-12-30
Apparatus for filtering liquids called "easy filter"
CH1962A
(en )
1890-06-14
Continuous or alternating action filter
CH88E
(en )
1891-08-15
Continuous or alternating action filter
CH2799A
(en )
1891-05-30
Bag filter
CH4282A
(en )
1892-03-31
New filter
CH5000A
(en )
1892-09-30
Filter system for all liquids
CH3732A
(en )
1891-12-15
filter
ES10448A1
(en )
1890-03-01
A device for filtering liquids called a "Capillery Filter".
CH4147A
(en )
1892-02-15
Air purifying filter
CH4175A
(en )
1892-03-15
Filtration device
FR318999A
(en )
1902-10-31
A sterilizing filter system
CH37494A
(en )
1907-06-15
Apparatus for filtering liquids
CH26036A
(en )
1903-07-15
Oil filtering device
ES12701A1
(en )
1892-01-01
A new and improved procedure to distill liquid hydrocarbons by means of the application of a special apparatus.
FR376972A
(en )
1907-08-26
Apparatus for separating liquids from vapors
FR418156A
(en )
1910-12-02
Continuously operating apparatus for removing liquids from solids
CH8946A
(en )
1895-02-15
Quick filter for liquids
FR342049A
(en )
1904-08-25
Fabric filter for liquids
FR410722A
(en )
1910-05-27
Apparatus for sterilizing liquids by ultra-violet rays or others
ES10887A1
(en )
1890-08-01
Filter improvements.
CH1606A
(en )
1890-02-28
Pressure mixer filter says, The sleeper
CH16120A
(en )
1898-09-30
Filtration apparatus
CH15939A
(en )
1898-08-31
Filtration apparatus
FR363516A
(en )
1906-08-02
Liquid filter device