CH1981A
(en )
1890-06-30
Advanced electric battery
CH64E
(en )
1890-10-15
Advanced electric battery
CH3135A
(en )
1891-07-15
Advanced electric battery
CH1601A
(en )
1890-02-28
Accumulator or secondary battery
CH1931A
(en )
1890-10-31
Electric secondary clockwork
CH5121A
(en )
1892-10-15
Secondary battery
CH1060A
(en )
1889-09-11
Secondary battery
ES11099A1
(en )
1890-09-16
Improvements made to secondary electric batteries.
CH3003A
(en )
1891-05-30
Electrode plate system for primary or secondary electric cells
CH6001A
(en )
1893-05-15
An advanced secondary battery
CH3338A
(en )
1891-08-31
New electric battery system
CH3330A
(en )
1891-08-31
Secondary battery
CH2271A
(en )
1890-09-15
Secondary element
CA35304A
(en )
1890-10-29
Electric battery
CA34812A
(en )
1890-08-02
Electric battery
CA33817A
(en )
1890-02-28
Electric battery
CH3741A
(en )
1891-12-31
Advanced primary battery
CH1372A
(en )
1889-11-23
Secondary battery
CH3889A
(en )
1892-01-15
Advanced thermoelectric battery
ES10543A1
(en )
1890-05-01
Improvements in accumulators or secondary batteries.
CH4453A
(en )
1892-05-14
Electric accumulator
CH1660A
(en )
1890-03-15
High flow electric battery
CH3537A
(en )
1891-10-15
Electrodes for primary and secondary batteries or accumulators
ES11211A1
(en )
1890-12-16
Improvements made to secondary batteries.
FR330835A
(en )
1903-08-26
Secondary electric clock