SU23819A1
(en )
1931-10-31
A method of manufacturing polishing circles of peat moss peat
SU40090A1
(en )
1934-11-30
Modifying the method of making mulch by rolling a ribbon of fertilizer and binders
SU29288A1
(en )
1933-02-28
Stone collector
SU23691A1
(en )
1931-10-31
Method of making seed dressing agents
SU31246A1
(en )
1933-07-31
A method of manufacturing a waterproof construction material
SU23527A1
(en )
1931-10-31
Nozzle
SU21093A1
(en )
1931-07-31
Scraper for the extraction of garden salt
SU28812A1
(en )
1932-12-31
Stamp for burning a chessboard pattern on the tree
SU23999A1
(en )
1931-11-30
A method of making fertilizer from various animal waste
SU28903A1
(en )
1933-01-31
The method of obtaining hydrocyanic acid
SU27632A1
(en )
1932-08-31
Method of making flexible shafts
SU45067A1
(en )
1935-11-30
A method of manufacturing ebony grinding wheels
SU28096A1
(en )
1932-10-31
The method of obtaining leather flour
SU29040A1
(en )
1933-01-31
Method of making blanks of blanks
SU20455A1
(en )
1931-04-30
Negative method
SU24890A1
(en )
1932-01-31
The method of obtaining phosphate fertilizers
SU45270A1
(en )
1935-12-31
A method of making artificial leather
SU19516A1
(en )
1931-02-28
Method of making concrete
SU45927A1
(en )
1936-02-29
The method of producing acetylene
SU27432A1
(en )
1932-08-31
The method of making artillery grease
SU48879A1
(en )
1936-08-31
Method of making photocells
SU26057A1
(en )
1932-04-30
The method of electrolytic decomposition of bronze
SU31070A1
(en )
1933-07-31
The method of manufacture of electronic devices
ES121802A1
(en )
1931-03-16
A method of manufacturing artificial porous stones.
ES119515A3
(en )
1930-10-01
A procedure for making snaps.