| 121 |
Method of manufacturing bricks |
US49108830 |
1930-10-24 |
US1995576A |
1935-03-26 |
HENRIK NIELSEN |
|
| 122 |
Refractory body and process of manufacturing the same |
US50558130 |
1930-12-30 |
US1944709A |
1934-01-23 |
KONRAD FRIEDERSDORFF |
|
| 123 |
Clay |
US46898930 |
1930-07-18 |
US1934642A |
1933-11-07 |
ROBERT RAFTON HAROLD |
|
| 124 |
Ceramic products and method of manufacturing the same |
US60238932 |
1932-03-31 |
US1917181A |
1933-07-04 |
HUGO ACKERMANN |
|
| 125 |
Ceramics |
US34409129 |
1929-03-02 |
US1885234A |
1932-11-01 |
CROWLEY HENRY L; CROWLEY ROBERT M |
|
| 126 |
Process for obtaining colloidal clays from ordinary surface clays |
US38229429 |
1929-07-30 |
US1865496A |
1932-07-05 |
ABRAHAMSON OSCAR E J |
|
| 127 |
Process for making ceramic compositions |
US34103929 |
1929-02-18 |
US1834515A |
1931-12-01 |
CURTIS THOMAS S |
|
| 128 |
Porcelain and method of making same |
US30169428 |
1928-08-23 |
US1802641A |
1931-04-28 |
MAUDE FAIRCHILD ALICE; LEE RATHBURN EMORY |
|
| 129 |
Material |
US1682251D |
|
US1682251A |
1928-08-28 |
|
|
| 130 |
Process for the manufacture of burnt building materials or the like of clay |
US4805425 |
1925-08-04 |
US1664815A |
1928-04-03 |
HUGO GRONROOS |
|
| 131 |
Stoneware of high resistance against the perforating power of electrical sparks and making the stoneware |
US15576126 |
1926-12-18 |
US1642754A |
1927-09-20 |
FELIX SINGER |
|
| 132 |
Method of making brick and other burned-clay products |
US9335526 |
1926-03-08 |
US1609416A |
1926-12-07 |
POOLE MAYNARD |
|
| 133 |
Refractory and method of its production |
US7952226 |
1926-01-06 |
US1594402A |
1926-08-03 |
BOOZE MACDONALD C |
|
| 134 |
Method of making articles of ceramic bonded granular material |
US63921623 |
1923-05-15 |
US1567020A |
1925-12-22 |
BEECHER MILTON F; BOOZE MACDONALD C |
|
| 135 |
Plastic composition and method of making the same |
US29067119 |
1919-04-17 |
US1509406A |
1924-09-23 |
KRAUS CHARLES E |
|
| 136 |
Porcelain |
US47608421 |
1921-06-06 |
US1462396A |
1923-07-17 |
TREISCHEL CHESTER C |
|
| 137 |
Insulating material and body composed thereof. |
US18758117 |
1917-08-22 |
US1262305A |
1918-04-09 |
CHAMPION ALBERT; MCDOUGAL TAINE G |
|
| 138 |
Ceramic material. |
US1912683533 |
1912-03-13 |
US1110449A |
1914-09-15 |
MALINOVSZKY ANDREW |
|
| 139 |
Pottery product. |
US1910537473 |
1910-01-11 |
US968379A |
1910-08-23 |
MARSDEN MARK W |
|
| 140 |
Jean baptiste ferdinand freotreatj |
US510065D |
|
US510065A |
1893-12-05 |
|
|
