CA298722A
(en )
1930-03-25
Manufacture of artificial threads or filaments
CA297694A
(en )
1930-02-25
Manufacture of artificial filaments or threads
CA303277A
(en )
1930-08-19
Manufacture of artificial threads or filaments
CA303278A
(en )
1930-08-19
Manufacture of artificial threads or filaments
CA311593A
(en )
1931-05-19
Manufacture of artificial filaments or threads
CA315536A
(en )
1931-09-22
Production of artificial filaments or threads
CA306830A
(en )
1930-12-16
Production of artificial filaments
CA306831A
(en )
1930-12-16
Production of artificial filaments
CA311409A
(en )
1931-05-19
Manufacture of artificial filaments
CA318521A
(en )
1931-12-29
Production of artificial filaments
CA315538A
(en )
1931-09-22
Production of artificial filaments
CA321719A
(en )
1932-04-19
Manufacture of artificial filaments or threads
CA326439A
(en )
1932-09-27
Manufacture of artificial filaments or threads
CA326440A
(en )
1932-09-27
Manufacture of artificial filaments or threads
CA299013A
(en )
1930-04-08
Apparatus for the production of artificial filaments or threads
CA322150A
(en )
1932-05-03
Production of artificial filaments or threads
CA295681A
(en )
1929-12-17
Manufacture of artificial filaments
CA299479A
(en )
1930-04-22
Process of twisting artificial filaments
CA305459A
(en )
1930-11-04
Artificial thread
CA316422A
(en )
1931-10-20
Process of making artificial filaments
CA325861A
(en )
1932-09-06
Manufacture of threads or filaments
CA309816A
(en )
1931-03-31
Process of manufacturing artificial threads
CA309997A
(en )
1931-03-31
Process of manufacturing artificial threads
CA296852A
(en )
1930-01-21
Manufacture of artificial silk
CA297201A
(en )
1930-02-04
Manufacture of artificial silk