CH78053A
(en )
1918-06-17
Artificial building block and method of making the same
CH82936A
(en )
1919-11-01
Key and method of making the same
CH78054A
(en )
1918-10-01
Reinforced concrete stairs and method of making the same
CH80791A
(en )
1919-04-16
Structure and method of manufacturing the same
CH78049A
(en )
1918-10-01
Reinforced concrete ceiling and method of making the same
CH76294A
(en )
1917-11-16
Briquette and method of making the same
CH79747A
(en )
1919-01-02
Method of making hoes and similar devices
CH75814A
(en )
1917-09-17
Mast and method of making the same
CH80786A
(en )
1919-04-01
Method of making masonry
CH72805A
(en )
1916-07-01
Firelighter and method of making the same
CH72196A
(en )
1916-04-17
Hyperbolic wheel and method of making the same
CH81089A
(en )
1919-08-01
Method of making artificial slabs
CH72296A
(en )
1916-05-01
Nail and method of making the same
CH80944A
(en )
1919-09-16
Method of making cords
CH77220A
(en )
1918-03-16
Method of making briquettes
CH56107A
(en )
1912-10-01
Artificial bristle and method of making the same
CH58212A
(en )
1913-03-01
Oven and method of making the same
CH80792A
(en )
1919-04-01
Firestone and method of making the same
CH71687A
(en )
1916-02-01
Heating element and method of making the same
CH78760A
(en )
1918-12-16
Electric radiator and method of making the same
CH76930A
(en )
1918-02-16
Method of making slippers
CH73900A
(en )
1916-12-01
Method of making briquettes
CH71958A
(en )
1916-03-16
Bevel gear and method of making the same
CH79146A
(en )
1918-10-01
Method of making briquettes
CH77319A
(en )
1918-08-16
Method and device for the manufacture of hulls from reinforced concrete