GR7684B
(en )
1938-10-03
GEOGRAPHY TEACHING SYSTEM IN SCHOOLS AND GEOGRAPHY IS MAPPED FOR THIS PURPOSE.
FR855209A
(en )
1940-05-06
Further training in electronic lenses
FR843668A
(en )
1939-07-07
Angular adjuster and its applications
FR858336A
(en )
1940-11-22
Mannequin
GR8336B
(en )
1939-07-08
MULTIPLE METROPHOMETER FOR USE IN THE TEACHING OF PHYSICIANS IN SCHOOLS.
FR854227A
(en )
1940-04-08
Advanced mannequin
GR7923B
(en )
1939-01-20
TEACHING GAMES AND INSTRUMENTS.
FR871602A
(en )
1942-05-02
ethenones and substituted ethenones
FR840743A
(en )
1939-05-03
Direct reading psychrometer device
FR861051A
(en )
1941-01-31
Mannequin fixation device
FR862027A
(en )
1941-02-25
Improvements in gyroscopic instruments
ES144146A1
(en )
1938-10-01
Improvements in measuring and regulating devices.
FR851288A
(en )
1940-01-05
Further development of stylographs and the like
GR8331B
(en )
1939-07-06
SURVIVAL SYSTEM OF SUBMARING SUBMARINS AND EVERYWHERE IN GENERAL.
FR972029A
(en )
1951-01-24
Further training in printing devices such as duplicators and the like
FR860950A
(en )
1941-01-28
Projector-modulator and uses thereof
GR7615B
(en )
1938-08-29
HOW TO APPROPRIATE TEACHING BOOKS FOR THE USE OF ALL KINDS OF SCHOOLS.
GR7496B
(en )
1938-07-04
PERFECTIONS ON LIME AND NUCLEAR CARBONS.
GR7345B
(en )
1938-05-09
SYSTEM FOR FINDING THE DAY OF THE WEEK OF A CHRONOLOGY GIVING AND TABLE OF INDICATORS OF THE DAY OF THE LEAKER BETWEEN TWO GIFTS.
GR8131B
(en )
1939-04-14
PERFECTIONS IN AND IN RELATION TO THE CONSTRUCTION OF WAISTBAND AND SIMILAR.
ES145847A1
(en )
1940-09-01
An improvement in measuring and regulating devices.
ES6075Y
(en )
1942-06-16
Indicator device for posters in general and similar applications.
ES5092Y
(en )
1940-10-16
Envelope-wetting and stamp-wetting device
FR848955A
(en )
1939-11-09
Advertising device
FR846098A
(en )
1939-09-08
Improvements in insecticides and the like