| 21 |
Fuel saver for locomotives |
US18612627 |
1927-04-23 |
US1824812A |
1931-09-29 |
FRANCE NORMAN E |
|
| 22 |
Tender feed water heater |
US11963026 |
1926-06-30 |
US1816874A |
1931-08-04 |
SCHELLENS CHRISTOPHER A |
|
| 23 |
Feed water heater |
US40493320 |
1920-08-20 |
US1816841A |
1931-08-04 |
GRACE JOHN F |
|
| 24 |
Feed water heater |
US42501730 |
1930-01-31 |
US1816518A |
1931-07-28 |
PAUL DUGELAY |
|
| 25 |
Auxiliary apparatus for steam generators |
US38565929 |
1929-08-13 |
US1811608A |
1931-06-23 |
BRUCE ALFRED W |
|
| 26 |
Feed water heater |
US9437026 |
1926-03-13 |
US1803772A |
1931-05-05 |
SCHELLENS EUGENE L; SCHELLENS CHRISTOPHER A |
|
| 27 |
Water purifier |
US11090026 |
1926-05-22 |
US1794395A |
1931-03-03 |
BROCK EDWARD J |
|
| 28 |
Feed-water heater |
US29572528 |
1928-07-27 |
US1794161A |
1931-02-24 |
ALFRED FIEDLER SEBASTIEN OTTO |
|
| 29 |
Tender-feed-water heater |
US29894628 |
1928-08-11 |
US1789713A |
1931-01-20 |
SCHELLENS CHRISTOPHER A |
|
| 30 |
Feed-water heater |
US15736926 |
1926-12-27 |
US1789501A |
1931-01-20 |
SCHULTZ CARL G |
|
| 31 |
Heating unit for locomotive tenders |
US68480224 |
1924-01-07 |
US1785275A |
1930-12-16 |
LOWER NATHAN M |
|
| 32 |
Method of heating the feed water of locomotives |
US24790028 |
1928-01-19 |
US1774921A |
1930-09-02 |
EMERSON GEORGE H |
|
| 33 |
Locomotive boiler |
US2350925 |
1925-04-16 |
US1764172A |
1930-06-17 |
KEENAN JR WALTER FRANCIS |
|
| 34 |
Change-over device for boiler-feed-water heaters and similar apparatus, especially applicable for locomotives |
US7421125 |
1925-12-08 |
US1759986A |
1930-05-27 |
PAUL JULIUSBURGER |
|
| 35 |
Hot-water feeding for boilers |
US11022426 |
1926-05-19 |
US1759107A |
1930-05-20 |
ALFRED FIEDLER SEBASTIEN OTTO |
|
| 36 |
Feed-water-heating system for locomotives |
US11868026 |
1926-06-26 |
US1748871A |
1930-02-25 |
EMERSON GEORGE H |
|
| 37 |
Feed-water heater |
US25157928 |
1928-02-03 |
US1738848A |
1929-12-10 |
ADOLPH STARR |
|
| 38 |
Feed-water heater |
US23276327 |
1927-11-12 |
US1733990A |
1929-10-29 |
PAUL DUGELAY |
|
| 39 |
Locomotive boiler and method of operating the same |
US2904025 |
1925-05-09 |
US1714505A |
1929-05-28 |
HARTMANN OTTO H; WILHELM JUNG |
|
| 40 |
Method for clearing and purifying water for steam boilers of all kinds |
US57382522 |
1922-07-10 |
US1700716A |
1929-01-29 |
JULIUS OSTERTAG |
|
