DK38580C
(en )
1928-03-26
Mandrel used for sealing the screw threads by a bolt screwed into a plate and provided with a hollow.
CH138083A
(en )
1930-02-15
Screw locking with two opposing threads having nuts.
FR832577A
(en )
1938-09-29
self-locking nuts, bolt heads, etc.
SU2052A1
(en )
1926-12-31
Unscrewing screw
SU6618A1
(en )
1928-09-29
Fixture to prevent unscrewing nut
DK47064C
(en )
1933-03-13
Procedure for the production of press mixtures with curable synthetic resins as a binder and for the production of shaped articles of such mixtures.
ES104733A1
(en )
1927-12-16
A nut or screw assembly, which has a device to prevent its loosening.
CH153897A
(en )
1932-04-15
Screw locking.
ES98454A1
(en )
1926-09-01
A perfected process for the manufacture of boards, blocks and other objects, with conglomerate cork particles.
FR880874A
(en )
1943-04-07
Reinforced concrete kiln for charring wood
ES75547A1
(en )
1921-01-01
A perfected procedure and its corresponding apparatus for the construction of concrete or reinforced concrete works.
ES97324A2
(en )
1926-10-16
A tempera painting, with the corresponding procedure for its manufacture.
ES126192A1
(en )
1932-06-01
Safety device with double lock for placement on the doors.
ES97347A1
(en )
1926-05-16
A bolt with its respective improved nut.
ES106463A1
(en )
1928-05-01
A steel of very little carbon, with the corresponding method for its manufacture.
FR644201A
(en )
1928-10-04
Safety barrel, small keys for locks and other applications
ES147068A1
(en )
1941-03-01
Tapered key screw with pressure distribution surfaces.
DK61733C
(en )
1943-12-20
Firearm with safety bolt and removable end base placed on the locking frame.
DK41532C
(en )
1930-01-27
Procedure and Tools for the Production of Filed Works.
DK42119C
(en )
1930-04-28
Bolt with quick-release and attachable nut.
ES114376A1
(en )
1929-10-16
Improvements in railroad tracks, with the corresponding bodies for fastening.
ES129277A1
(en )
1933-05-01
A process for the manufacture of plates with reliefs, cement and asbestos or other fibers.
ES100050A1
(en )
1926-12-16
A pavement with the corresponding method, for its manufacture.
ES100051A1
(en )
1926-12-16
A pavement with the corresponding method, for its manufacture.
DK46550C
(en )
1932-11-28
Process for the preparation of fast-curing odorless Phenolaldehyde resins and mixtures thereof with fillers.