FR987167A
(en )
1951-08-09
building element
AT173391B
(en )
1952-12-10
Multi-chamber hollow block made of concrete or the like.
CH279712A
(en )
1951-12-15
Expansible mandrel.
FR1018455A
(en )
1953-01-08
Building block
AT167479B
(en )
1951-01-10
Gallery formwork, tunnel formwork or the like.
AT185620B
(en )
1956-05-25
Alternator or the like.
AT172137B
(en )
1952-08-11
Hollow component made of concrete or the like.
FR1065201A
(en )
1954-05-21
load-bearing element for construction
CH285405A
(en )
1952-09-15
Building construction block.
FR995129A
(en )
1951-11-28
building element
CH272175A
(en )
1950-12-15
Building construction block.
AT170404B
(en )
1952-02-25
Reinforcement of foundation walls, pillars or the like.
FR66212E
(en )
1956-06-05
building element
FR946271A
(en )
1949-05-30
construction element, such as concrete block
AT179639B
(en )
1954-09-25
Detachable connection of channel-shaped hollow profiles, in particular of U-profiles or the like.
GR14052B
(en )
1952-12-27
NEW TYPE OF CEMENT STONES, CEMENT BIBLES AND OPTOBILES FOR THE CONSTRUCTION OF ANY MASONRY.
AT183388B
(en )
1955-10-10
Wrench or the like
FR984399A
(en )
1951-07-05
building element
FR981772A
(en )
1951-05-30
building element
FR58994E
(en )
1954-04-22
building element
FR1117111A
(en )
1956-05-17
building element
AT177380B
(en )
1954-01-25
Sealing of two-part weir locks or the like.
FR966167A
(en )
1950-10-03
The complete prefabricated block
AT178713B
(en )
1954-06-10
Hollow block skeleton construction
ES17173Y
(en )
1949-01-01
Blocks for the construction of partitions.