CH54566A
(en )
1912-06-01
Process for the production of a refractory, electrically conductive body
CH53321A
(en )
1912-02-01
Process for the production of ground plates for electrical accumulators
US972723A
(en )
1910-10-11
Manufacture of filters.
AT82991B
(en )
1921-02-25
Process for the production of hydrogen.
CH51322A
(en )
1911-08-16
Process for the production of casings for precious stones
CH62730A
(en )
1913-12-16
Machine for the production of wire mesh
CH54361A
(en )
1912-05-17
Machine for the production of wire mesh
CH49731A
(en )
1911-03-16
Process for the production of shaped pieces for building purposes
AU1997310B
(en )
1911-02-14
Process forthe industrial manufacture of rubber
CH56142A
(en )
1912-10-01
Process for the manufacture of chemical resistance material for diaphragms of electrolytic apparatus
CH53868A
(en )
1912-04-01
Process for the production of sleeves for elastic wheel rims
CH54751A
(en )
1912-06-17
Machine for the production of insulating sleeves
FR423829A
(en )
1911-04-27
Filtration process
CA146963A
(en )
1913-04-01
Electrolytic process
CA138782A
(en )
1912-01-27
Electrolytic process
CH73729A
(en )
1916-11-16
Process for the production of wires from tungsten
CH58369A
(en )
1913-03-01
Process for the production of insulated handles for everyday objects
FR415844A
(en )
1910-10-05
Rotating electrical contacts
FR17496E
(en )
1913-09-20
Production of? G-dimethyl-? G-butadiene
CH53246A
(en )
1912-02-01
Process for the production of hydrogen peroxide
FR423757A
(en )
1911-04-26
Purifier funnel
CH57533A
(en )
1913-01-16
Process for the production of hydrogen
CH57387A
(en )
1913-01-02
Process for the production of electrical capacitors
CA128108A
(en )
1910-09-13
Process of obtaining sulphur
CH57848A
(en )
1913-02-01
Process for making layered fabrics for electrical insulation