DK24989C
(en )
1919-09-08
Apparatus for machines for making hollow bricks and the like.
DK21683C
(en )
1916-12-04
Hollow Brick Making Machine.
DK14175C
(en )
1911-01-30
Procedure and Apparatus for the manufacture of hollow bricks closed at the ends.
DK21655C
(en )
1916-11-20
Procedure and Apparatus for the manufacture of hollow articles of pulp.
DK13985C
(en )
1910-12-12
Apparatus for machines for making matchboxes and the like.
DK25315C
(en )
1919-12-15
Machine for the production of hollow glass objects.
DK23248C
(en )
1918-07-08
Formstone for the Construction of Hollow Walls.
ES65470A1
(en )
1918-07-16
Hollow brick.
ES65559A2
(en )
1919-02-16
Hollow brick.
DK22531C
(en )
1917-10-15
Cement roof making machine and the like.
DK27820C
(en )
1921-06-20
Press for the manufacture of pipes and hollow bodies.
DK31667C
(en )
1923-05-07
Machine for Manufacturing Hollow Glassware.
DK12194C
(en )
1909-06-01
Method for Making Hollow Lifebuoys.
DK23554C
(en )
1918-09-23
Procedure for the production of hollow articles of pulp.
DK31715C
(en )
1923-05-14
Hollow Glassware Manufacturing Machine.
DK22011C
(en )
1917-03-19
Device for building scaffolding.
DK22624C
(en )
1917-11-26
Slab contraction joints should intersect at the openings for columns.
ES63063A1
(en )
1916-10-16
A hollow ingot casting procedure.
DK22505C
(en )
1917-10-08
Device for regenerative apparatus and the like.
DK13538C
(en )
1910-08-15
Method and device for heating hollow glass bodies during their manufacture.
DK21463C
(en )
1916-09-04
Device at Scaffolding.
DK28458C
(en )
1921-09-19
Method and Form for Manufacturing Sharply Cast Molds.
DK27815C
(en )
1921-06-20
The mold cores for hollow concrete bodies.
DK27221C
(en )
1921-02-28
Paper twine and procedure for making the same.
DK22402C
(en )
1917-09-03
Apparatus for Finding Joints in Plastered Walls.