BE577200A
(en )
1959-09-28
Improvements to instant-action evaporators.
FR1246232A
(en )
1960-11-18
Improvements to tubular boilers
BE593757A
(en )
1960-12-01
Improvements to electro-precipitators.
BE583161A
(en )
1960-01-18
Improvements to parasols.
BE586636A
(en )
1960-05-03
Improvements to fittings.
BE590178A
(en )
1960-08-16
Improvements to so-called telescopic taps.
BE575631A
(en )
1959-05-29
Improvements to tubular metal bellows.
FR1198814A
(en )
1959-12-09
Improvements to metal shelving
FR1240234A
(en )
1960-09-02
Improvements to turbo-engines
BE575698A
(en )
1959-05-29
Improvements to metal constructions.
BE581297A
(en )
1959-12-01
Improvements to tubular boilers.
BE576745A
(en )
1959-07-16
Improvements to tubular boilers.
BE595985A
(en )
1961-02-01
Improvements to alloys.
FR1206368A
(en )
1960-02-09
Pipe improvement
BE577321A
(en )
1959-07-31
Improvements made to metal box springs.
FR1239744A
(en )
1960-08-26
Improvements to metal covers
OA00764A
(en )
1967-11-15
Improvements to photoelectric tubes.
FR1204736A
(en )
1960-01-27
Improvements to servo-brakes
FR1207735A
(en )
1960-02-18
Improvements to rakes-tedders
FR1213761A
(en )
1960-04-04
Improvements to ampoules-syringes
FR1375651A
(en )
1964-10-23
Improvements to stylographs
FR1235189A
(en )
1960-07-01
Improvements to molybdenum alloys
FR1225909A
(en )
1960-07-06
Improvements to tubular boilers
FR1220294A
(en )
1960-05-24
Improvements to metal constructions
BE577459A
(en )
1959-07-31
Improvements made to snuffboxes.