FR1191363A
(en )
1959-10-19
Improvements to speakerphone
FR1143958A
(en )
1957-10-08
Improvements to alkaline type electric accumulators
FR1173602A
(en )
1959-02-27
Improvements to partition walls for electric accumulators
FR75639E
(en )
1961-07-21
Improvements to electric accumulators
BE573166A
(en )
1959-03-16
Improvements to tubular type plates for electric accumulators.
FR1144321A
(en )
1957-10-11
Improvements to electric accumulators
FR1148046A
(en )
1957-12-03
Improvements to electric accumulators
FR1208728A
(en )
1960-02-25
Tubular plate for electric accumulators
FR1222796A
(en )
1960-06-13
Improvements to separators for electric accumulators
FR1193577A
(en )
1959-11-03
Improvements to tube sheets for electric accumulators
FR1143821A
(en )
1957-10-04
Improvements to electric capacitors
FR1159811A
(en )
1958-07-02
Improvements to electric capacitors
FR1172425A
(en )
1959-02-10
Improvements to electric capacitors
FR1218429A
(en )
1960-05-10
Improvements to electric coils
BE573894A
(en )
1959-04-01
Ventilation caps for electric accumulators
FR1201931A
(en )
1960-01-06
Improvements made to electrodes for electric accumulators
FR1123806A
(en )
1956-09-28
Improvements to electric capacitors
FR1205002A
(en )
1960-01-29
Improvements to electric accumulators
FR1150426A
(en )
1958-01-13
Improvements to deflectors for electric accumulators
FR1166651A
(en )
1958-11-13
Improvements to electrodes for electrolysis
BE574951A
(en )
1959-05-15
Improvements to separators for electric accumulators
FR1243515A
(en )
1960-10-14
Improvement in separators for accumulators
FR67027E
(en )
1957-11-04
Improvements to sealed electric accumulators
FR1141790A
(en )
1957-09-09
Improvements to electric accumulators
FR1130144A
(en )
1957-01-31
Improvements to electric accumulators