CH77220A
(en )
1918-03-16
Method of making briquettes
CH76802A
(en )
1918-07-01
Method of tightening intestines
CH76859A
(en )
1918-02-16
Method of braking by means of four-stroke explosion engines and device for carrying out this method
CH78055A
(en )
1918-11-01
Method for fastening lateral pipe inserts in chimney walls and chimney stones
CH77094A
(en )
1918-03-01
Method of making briquettes
CH78070A
(en )
1918-11-01
Method of making briquettes
CH75029A
(en )
1917-05-16
Method of making briquettes
CH73900A
(en )
1916-12-01
Method of making briquettes
CH82821A
(en )
1919-10-16
Process for the production of tempered steel fittings
CH76294A
(en )
1917-11-16
Briquette and method of making the same
CH77486A
(en )
1918-09-02
Method for connecting chimney stones to one another
CH75535A
(en )
1917-12-01
Method of draining peat
CH77097A
(en )
1918-03-01
Method of saving fuel
CH75009A
(en )
1917-05-16
Method of making briquettes
CH73269A
(en )
1917-02-16
Method of making briquettes
CH72805A
(en )
1916-07-01
Firelighter and method of making the same
CH76434A
(en )
1918-05-16
Process for the heat treatment of composite bodies
CH79146A
(en )
1918-10-01
Method of making briquettes
CH59678A
(en )
1913-06-02
Method of treating water
CH77545A
(en )
1918-05-01
Method of treating vulcanized fibers
CH79747A
(en )
1919-01-02
Method of making hoes and similar devices
CH76063A
(en )
1917-11-01
Method and device for the production of peat and other briquettes
CH83007A
(en )
1919-11-17
Process and device for the production of tempered fittings from austenitic manganese steels
CH77319A
(en )
1918-08-16
Method and device for the manufacture of hulls from reinforced concrete
CH78502A
(en )
1918-12-16
Process for the preparation of hydroquinine