CH56329A
(en )
1912-10-16
Method of making artificial threads
CH50501A
(en )
1911-06-01
Method of making artificial threads
CH56237A
(en )
1912-10-16
Method of making wadding
CH55344A
(en )
1912-08-01
Process for the production of artificial threads
CH56107A
(en )
1912-10-01
Artificial bristle and method of making the same
CH56981A
(en )
1912-12-02
Method of making vaults
CH56980A
(en )
1912-12-02
Method of making massive houses
CH59641A
(en )
1913-06-02
Process for the production of artificial threads
CH55452A
(en )
1912-08-16
Method of making bells
CH57230A
(en )
1913-01-02
Method of making briquettes
CH73900A
(en )
1916-12-01
Method of making briquettes
CH57227A
(en )
1912-12-16
Process for the production of artificial stones
CH57033A
(en )
1912-12-02
Method of making wax flowers
CH56835A
(en )
1912-12-02
Process for the production of artificial tobacco leaves
CH56522A
(en )
1912-11-01
Process for the production of artificial building blocks
CH57919A
(en )
1913-02-17
Process for the production of artificial lithography stones
CH62147A
(en )
1913-11-01
Method of making table set
CH73269A
(en )
1917-02-16
Method of making briquettes
CH75009A
(en )
1917-05-16
Method of making briquettes
CH60924A
(en )
1913-08-16
Method of making fireplace hats
CH58857A
(en )
1913-04-01
Process for the production of artificial stones
CH59610A
(en )
1913-06-02
Process for the production of artificial stones
CH61357A
(en )
1913-09-16
Process for the production of artificial stones
CH59001A
(en )
1913-04-16
Method and device for the production of artificial railways
CH73443A
(en )
1917-03-16
Process for the production of artificial slates