CH71958A
(en )
1916-03-16
Bevel gear and method of making the same
CH72196A
(en )
1916-04-17
Hyperbolic wheel and method of making the same
CH75814A
(en )
1917-09-17
Mast and method of making the same
CH72805A
(en )
1916-07-01
Firelighter and method of making the same
CH72296A
(en )
1916-05-01
Nail and method of making the same
CH76294A
(en )
1917-11-16
Briquette and method of making the same
CH71687A
(en )
1916-02-01
Heating element and method of making the same
CH82936A
(en )
1919-11-01
Key and method of making the same
CH79181A
(en )
1918-10-16
Cardboard box and method of making the same
CH71079A
(en )
1915-12-01
Talking machine pen and method of making the same
CH78054A
(en )
1918-10-01
Reinforced concrete stairs and method of making the same
CH70609A
(en )
1915-10-01
Welding sheet and method of making the same
CH68168A
(en )
1915-02-16
Cross-wound bobbin and method of making the same
CH65479A
(en )
1914-06-16
Stone sleeve and method of making the same
CH58212A
(en )
1913-03-01
Oven and method of making the same
CH80791A
(en )
1919-04-16
Structure and method of manufacturing the same
CH78053A
(en )
1918-06-17
Artificial building block and method of making the same
CH65709A
(en )
1914-07-01
Heald and method of making the same
CH78971A
(en )
1918-09-16
Process for the production of spur and helical gears
CH71921A
(en )
1916-08-01
Method and device for the production of soap powder
CH79384A
(en )
1918-11-01
Bevel gear and process for its manufacture
CH58203A
(en )
1913-03-01
Earmuffs and methods of making the same
CH72042A
(en )
1916-04-01
Tape and method of making the same
CH73861A
(en )
1916-12-01
Process for the preparation of hydrolecithin
CH75418A
(en )
1918-01-02
Small stone pavement and method of making same