GR152B
(en )
1921-08-28
PERFECTIONS IN ALKALY ACCUMULATORS.
ES77788A1
(en )
1921-06-01
Improvements in electric accumulators.
FR544766A
(en )
1922-09-29
Accumulator
FR548287A
(en )
1923-01-11
accumulator electrode
ES71819A3
(en )
1920-03-01
Improvements in electric accumulators.
GB166344A
(en )
1921-07-13
New means in colour-kinematography
GR149B
(en )
1921-08-28
PERFECTIONS CONCERN THE SUSPENSION OF TILES IN ELECTRIC ACCUMULATOR CONTAINERS.
GR227B
(en )
1921-12-30
METHOD OF SUSPENSION OF PLATES IN CONTAINER CONTAINERS MAINLY PORTABLE BATTERIES.
ES75298A1
(en )
1920-12-16
Method of suspending the plates in the containers of the elements of electric accumulators.
ES83591A1
(en )
1923-04-01
Improvements in electric accumulators.
ES80322A1
(en )
1922-08-01
Improvements in electric capacitors.
ES74952A1
(en )
1920-12-01
Improvements in boxes for electric accumulators.
ES74531A1
(en )
1920-10-16
Improvements in the manufacture of negative plates for electric accumulators.
FI8654A
(en )
1921-09-02
Electrolytic cell
ES77538A1
(en )
1921-06-01
Improvement in electric ovens.
ES76503A1
(en )
1921-02-16
Improvements in electrical transformers.
ES74565A1
(en )
1920-11-01
Improvements in electric accumulators.
FI9020A
(en )
1922-06-13
Electrolytic cell
ES79458A1
(en )
1922-01-01
Improvements in electric ovens.
ES80161A1
(en )
1922-03-01
Improvements in electrical transformers.
ES76750A1
(en )
1921-03-01
Improvements in electrical transformers.
ES76023A1
(en )
1921-02-01
Improvements in the suspension of the plates in the containers of electric accumulators.
FR523180A
(en )
1921-08-13
Inverter
ES74219A1
(en )
1920-09-16
Electrodes
DK30783C
(en )
1922-11-27
Electric Timer.