US2216875A
|
|
Building block construction
|
US1960573A
|
|
Expansively burned ceramic material
|
US1960572A
|
|
Method and apparatus for burning of argillaceous material
|
US1991013A
|
|
Method and apparatus for coating the interior of mold surfaces
|
US1960571A
|
|
Method or process for the expansive burning of clays
|
US1808905A
|
|
Building material
|
US1559682A
|
|
Machine for producing brick faces
|
US1535402A
|
|
Face-brick sanding machine
|
US1463937A
|
|
Sanded texture brick
|
US1463936A
|
|
Method of forming texture brick
|
US1527789A
|
|
Metal pallet for brick or tile
|
US1528183A
|
|
Method of coloring brick
|
US1191925A
|
|
Brickmaking-machine.
|
US1353515A
|
|
Brick
|
CA363899A
|
|
Clay burning process
|
CA362469A
|
|
Expanded ceramic material
|
CA238594A
|
|
Method of forming texture bricks
|
CA237280A
|
|
Sanded texture brick
|
CA363900A
|
|
Argillaceous material burning apparatus
|
CA245215A
|
|
Method of colouring brick
|