181 |
Ceramic composition and method of preparing |
US72065734 |
1934-04-14 |
US2073136A |
1937-03-09 |
LEE BENNETT ALBERT |
|
182 |
Clays and processes for preparing same |
US74315534 |
1934-09-07 |
US2036617A |
1936-04-07 |
PAUL BECHTNER; HIRSCHMANN WINFRED B |
|
183 |
Ceramic wares and method of manufacture |
US37254329 |
1929-06-20 |
US1862974A |
1932-06-14 |
MCDOUGAL TAINE G |
|
184 |
Treatment of clay |
US30143328 |
1928-08-22 |
US1771479A |
1930-07-29 |
ALTON WILLIAM H |
|
185 |
Treatment of clay |
US29512428 |
1928-07-24 |
US1771477A |
1930-07-29 |
ALTON WILLIAM H |
|
186 |
Use of dumortierite |
US17881027 |
1927-03-26 |
US1723174A |
1929-08-06 |
JEFFERY JOSEPH A; RIDDLE FRANK H |
|
187 |
Method of making ceramic articles |
US1973725 |
1925-03-31 |
US1690208A |
1928-11-06 |
ROSS DONALD W; LAMBIE JAMES M |
|
188 |
Process of manufacturing artificial stone |
US4616225 |
1925-07-25 |
US1617927A |
1927-02-15 |
TANNER OSCAR A |
|
189 |
Process of preparing material for ceramic articles |
US62197423 |
1923-03-01 |
US1589617A |
1926-06-22 |
AUSTIN ARTHUR O |
|
190 |
Antislip tile |
US53177122 |
1922-01-25 |
US1567091A |
1925-12-29 |
TONE FRANK J |
|
191 |
Manufacture of chamotte bricks |
US65425723 |
1923-07-27 |
US1561492A |
1925-11-17 |
EMIL SIEURIN SVEN |
|
192 |
Refractory ware |
US43476321 |
1921-01-03 |
US1438599A |
1922-12-12 |
JEFFERY JOSEPH A |
|
193 |
Ceramic insulating material |
US38163720 |
1920-05-15 |
US1409953A |
1922-03-21 |
JEFFERY JOSEPH A |
|
194 |
Porcelain |
US26516018 |
1918-12-03 |
US1343040A |
1920-06-08 |
CHRISTIAN DANTSIZEN |
|
195 |
Manufacture of lavatory-basins, &c., made of earthenware. |
US1905283064 |
1905-10-16 |
US839150A |
1906-12-25 |
JOHNSON ALFRED |
|
196 |
Robert brewster |
US474286D |
|
US474286A |
1892-05-03 |
|
|
197 |
Rose ann johnson |
US474253D |
|
US474253A |
1892-05-03 |
|
|
198 |
Brick-kiln |
US252319D |
|
US252319A |
1882-01-17 |
|
|
199 |
Improvement in the manufacture of artificial stone |
US127264D |
|
US127264A |
1872-05-28 |
|
|
200 |
Improvement in explosive projectiles |
US38491D |
|
US38491A |
1863-05-12 |
|
|