CH236780A
(en )
1945-03-15
Color photographic material and method of making the same.
CH267980A
(en )
1950-04-30
Ski and its method of manufacture.
CH224805A
(en )
1942-12-15
Electric recording pen and method of making the same.
CH219763A
(en )
1942-02-28
Heat exchanger and method of making the same.
AT168635B
(en )
1951-07-10
Welding rod and method of making the same
CH262105A
(en )
1949-06-15
Magnetron and method of making the same.
CH226687A
(en )
1943-04-30
Process for the preparation of methyl isocyanate.
CH217627A
(en )
1941-10-31
Process for the manufacture of prostheses.
CH230058A
(en )
1943-12-15
Zipper and process for its manufacture.
CH220539A
(en )
1942-04-15
Method and tool for the production of seamless hollow bodies with longitudinal ribs.
CH251581A
(en )
1947-10-31
Method and device for the production of rearranged artificial silk chains.
CH213583A
(en )
1941-02-28
Fiber mat and method of making the same.
CH225273A
(en )
1943-01-15
Method of making suitcases.
CH212823A
(en )
1940-12-31
Method and device for manufacturing flycatchers.
AT188101B
(en )
1956-12-27
Method and mold for making filters
CH220047A
(en )
1942-03-15
Process for the preparation of an aryloxy-alkylamino-butanone.
CH195967A
(en )
1938-02-28
Book and method of making the same.
AT163413B
(en )
1949-07-11
Process for the preparation of new p-aminobenzenesulfonacylamides
CH225373A
(en )
1943-01-31
Process for the production of artificial structures.
CH224938A
(en )
1942-12-31
Method and device for the production of artificial threads.
AT172078B
(en )
1952-08-11
Process for the production of seamless tubes
CH225798A
(en )
1943-02-28
Method of making multicolor images.
CH218870A
(en )
1942-01-15
Method and device for the production of fine hollow fibers.
CH231152A
(en )
1944-02-29
Method of disinfection and / or preservation.
GR8438B
(en )
1939-08-18
METHOD AND MEANS OF AUTOMATIC CLEANING OF BATHROOMS