| 181 |
Fluid stream control |
US51663231 |
1931-02-18 |
US2028211A |
1936-01-21 |
HAWORTH MACK E |
|
| 182 |
Apparatus for separating materials by fluid streams |
US54005931 |
1931-05-26 |
US2026633A |
1936-01-07 |
HAWORTH MACK E |
|
| 183 |
Method of and apparatus for cleaning coal |
US68777033 |
1933-09-01 |
US2022588A |
1935-11-26 |
DICKERSON JAMES H |
|
| 184 |
Apparatus for the pneumatic separation of materials comprising elements of different specific weights, such as raw coal |
US64392632 |
1932-11-22 |
US2012633A |
1935-08-27 |
JOSEPH MEUNIER FELICIEN |
|
| 185 |
Process and mechanism for separating intermixed divided materials |
US48385630 |
1930-09-23 |
US2001331A |
1935-05-14 |
PEALE JR REMBRANDT |
|
| 186 |
Process and mechanism for separating intermixed divided materials |
US57403422 |
1922-07-10 |
US1995295A |
1935-03-26 |
KENNETH DAVIS |
|
| 187 |
Concentrating mechanism |
US62979232 |
1932-08-22 |
US1984684A |
1934-12-18 |
LIDE MARTIN J |
|
| 188 |
Process and apparatus for the separation of particles composing a mass |
US36240629 |
1929-05-11 |
US1982601A |
1934-11-27 |
SUTTON HENRY M; STEELE EDWIN G |
|
| 189 |
Process for separating intermixed divided materials |
US38972229 |
1929-08-31 |
US1976292A |
1934-10-09 |
RICHARD PEALE |
|
| 190 |
Method and apparatus for feeding and separating dry coal from refuse |
US52390331 |
1931-03-19 |
US1950861A |
1934-03-13 |
O'TOOLE SR EDWARD |
|
| 191 |
Apparatus for removing stones from coal |
US45625730 |
1930-05-27 |
US1948800A |
1934-02-27 |
JULES REVELART AUGUSTE |
|
| 192 |
Coal cleaner |
US57979231 |
1931-12-08 |
US1939121A |
1933-12-12 |
KENT THOMAS W; KENT THOMAS J |
|
| 193 |
Process and apparatus for separating intermixed divided materials |
US48385730 |
1930-09-23 |
US1931008A |
1933-10-17 |
RICHARD PEALE; PEALE JR REMBRANDT |
|
| 194 |
Process and mechanism for separating intermixed divided materials |
US32687828 |
1928-12-18 |
US1923951A |
1933-08-22 |
RICHARD PEALE; PEALE JR REMBRANDT |
|
| 195 |
Apparatus for the pneumatic separation of materials of different densities |
US51709131 |
1931-02-19 |
US1901783A |
1933-03-14 |
PAUL SOULARY |
|
| 196 |
Antigravity middling chute attachment for pneumatic coal cleaning tables |
US42463430 |
1930-01-30 |
US1888933A |
1932-11-22 |
OPPY ALWYN G |
|
| 197 |
Method for treating asbestos |
US46548530 |
1930-07-03 |
US1875890A |
1932-09-06 |
ARNOLD RUKEYSER WALTER |
|
| 198 |
friend |
US1875296D |
|
US1875296A |
1932-08-30 |
|
|
| 199 |
Separation of dry materials |
US33036429 |
1929-01-04 |
US1866186A |
1932-07-05 |
CHARLES APPLEYARD KENELM; HIGHAM HOLMES COLIN WILLIAM; LLOYD BRAMWELL IVOR |
|
| 200 |
Separation of solid materials of different specific gravities |
US18647427 |
1927-04-25 |
US1843405A |
1932-02-02 |
GEORGE RAW |
|
