GR1710B
(en )
1928-01-12
METHOD OF CONSTRUCTION OF ROAD DECORATES, DESTRUCTIONS AND OTHER INVESTMENTS.
GR1844B
(en )
1928-05-19
IMPROVEMENTS IN THE METHOD OF CONSTRUCTION OF ROAD DECORATES, DESTRUCTIONS AND OTHER INVESTMENTS.
GR2276B
(en )
1929-04-23
METHOD AND ORGANIZATION OF IRROGATION.
GR3133B
(en )
1931-04-02
METHOD OF USE OF ZAKYNTHOS ASPHASPHALT FOR THE CONSTRUCTION OF PERMANENT AND SEMI-PERMANENT ROADS.
FR656739A
(en )
1929-05-13
Shear
GR2511B
(en )
1929-11-15
METHOD OF MANUFACTURE OF EMERALS AND SIMILAR.
GR2227B
(en )
1929-03-20
METHOD FOR THE CONSTRUCTION OF BITUMINOUS SOLID ROADS, RAILWAY BUILDINGS AND THE like.
ES105443A1
(en )
1928-02-01
Improvements in the manufacture of benzine and hydrocarbons.
ES102751A1
(en )
1927-08-16
Fast and economic construction system.
DK40310C
(en )
1929-06-17
Two-part Window Hasp.
ES113414A1
(en )
1929-08-01
Improvements in the construction of roads and roads.
CH116270A
(en )
1926-09-01
Airship balanced transversely and longitudinally.
ES91971A1
(en )
1925-04-01
Improvements in road and driveway construction.
GR1590B
(en )
1927-08-25
METHOD OF INCREASING CONTENT AS PERFOSPHORUS.
ES111456A1
(en )
1929-04-16
Blisters previously prepared auto-aspiradoras and auto-inyectoras.
ES90380A3
(en )
1924-09-16
An improvement in the construction of pavements.
ES102221A1
(en )
1927-05-01
Fin and plane wheel.
GR2579B
(en )
1929-12-20
METHOD AND INSTALLATION FOR GRASTING CEMENT AND SIMILAR SUBSTANCES.
GR2422B
(en )
1929-08-21
MINING METHODS AND DEVICES.
DK39238C
(en )
1928-09-10
Signpost or similar.
ES109007A1
(en )
1928-10-01
Improvements in the construction of roads and similar.
FR676576A
(en )
1930-02-25
Radio-telephone or radiotelegraph system
GR1644B
(en )
1927-10-21
METHOD FOR THE PREPARATION OF GYALKALIA AND MAGNESIUM CYANAMIDS.
GR2094B
(en )
1928-12-31
CATALYST AND METHOD OF CONSTRUCTION OF THIS CATALYT.
GR1576B
(en )
1927-08-11
METHOD OF MANUFACTURE OF HARD TILES OR TALK AND ITS INDUSTRIALIZATION UNDER VARIOUS FORM.