AT274708B
(en )
1969-09-25
Method of cementing a borehole
CH376584A
(en )
1964-04-15
Method for producing single-crystal semiconductor rods
CH333882A
(en )
1958-11-15
Method of rendering clothing water repellent
AT260837B
(en )
1968-03-25
Method of fracturing subterranean oil-bearing formations
CH317133A
(en )
1956-11-15
Process for polymerizing acrylonitrile
AT184039B
(en )
1955-12-10
Process for the production of pipe connections on drill rods for deep drilling
CH327296A
(en )
1958-01-31
Method for the electrolytic application of an iron layer to an object
GB718866A
(en )
1954-11-24
Improvements in method of hard surfacing
AT181829B
(en )
1955-04-25
Process and device for the creation of new wells and the regeneration of existing wells
CH306603A
(en )
1955-04-30
Method of coloring masses.
CH318445A
(en )
1957-01-15
Process for the recovery of dimethylnitrosamine
AT195869B
(en )
1958-02-25
Process for turbo drilling with indirect flushing and simultaneous continuous extraction of drill cores and rock samples
AT182217B
(en )
1955-06-10
Method for the rapid assembly of structures from prefabricated, articulated parts
AT198699B
(en )
1958-07-25
Method of increasing the yield in the foundry
AT189901B
(en )
1957-05-25
Method of making rock drill bits
AT180948B
(en )
1955-01-25
Milling machine for removing stone formations
AT186004B
(en )
1956-06-25
Method and apparatus for recording earthquake waves generated in the earth's surface by the ignition of an explosive charge
AT188037B
(en )
1956-12-27
Method of lining the riser of casting molds
CH322631A
(en )
1957-06-30
Method for gluing objects, in particular metals
AT193829B
(en )
1957-12-10
Process for the extraction of crude oil from oil-bearing rock formations
AT186587B
(en )
1956-08-25
Method and device for the extraction of oriented drill cores
AT182386B
(en )
1955-06-25
Method of fixing dyes
CH229780A
(en )
1943-11-15
Method of gluing.
AT182287B
(en )
1955-06-10
Method for soldering hard metal fittings into carrier bodies
AT184299B
(en )
1956-01-10
Process for the degradation of dextran in a neutral medium