FR1335505A
(en )
1963-08-23
Improvements to catamenial devices
FR1282085A
(en )
1962-01-19
Improvements to spraying devices
BE596084A
(en )
1961-04-17
Improvement brought to vennes.
BE593757A
(en )
1960-12-01
Improvements to electro-precipitators.
BE580569A
(en )
1960-01-11
Improvements to printing devices.
FR1261798A
(en )
1961-05-19
Improvements to semiconductor devices
BE586636A
(en )
1960-05-03
Improvements to fittings.
BE594469A
(en )
1960-12-16
Improvements to masking devices.
BE597899A
(en )
1961-03-31
Improvements to telephone devices
FR1265523A
(en )
1961-06-30
Improvements to electronic devices
BE588719A
(en )
1960-07-18
Improvements to distribution devices
BE594854A
(en )
1961-01-02
Improvements to combustion devices.
FR1244370A
(en )
1960-10-28
Improvements to punching units
FR76332E
(en )
1961-10-06
Improvements to massage devices
BE594917A
(en )
1961-03-13
Improvements to telephone systems.
FR1218838A
(en )
1960-05-12
Improvements to resuscitation devices
FR79372E
(en )
1962-11-23
Improvements to electromagnetic time devices
FR76225E
(en )
1961-09-29
Improvements to radar devices
FR1232362A
(en )
1960-10-07
Improvements to sounding devices
FR1220796A
(en )
1960-05-27
Improvements made to filtration devices
FR1236878A
(en )
1960-07-22
Improvements to venipuncture devices
BE581516A
(en )
1959-12-01
Improvements to electrical devices.
FR1275793A
(en )
1961-11-10
Improvements to telephone devices
BE595235A
(en )
1961-01-16
Improvements to aviation devices.
BE595234A
(en )
1961-01-16
Improvements to aviation devices.