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DE165491C
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DE223028C
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DE40521C
(de )
Führungsplatten in Dampfkessel-Flammrohren
DE42698C
(de )
Schlangenrohrkessel
DE376104C
(de )
1923-05-24
Waermeaustauschvorrichtung, bestehend aus Rohrschlangen mit U-foermig gebogenen Schenkeln
DE218017C
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
DE434099C
(de )
1926-09-15
Wasserrohrkessel
DE452923C
(de )
1927-11-23
Rauchgasspeisewasservorwaermer mit zickzackfoermig verlaufenden Rohren
AT31566B
(de )
1908-01-25
Dampfkessel.
DE159198C
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
AT25260B
(de )
1906-08-10
Vorrichtung zur Reinigung von Feuerrohren.
DE301549C
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DE156512C
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DE185426C
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DE160753C
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DE149658C
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DE200151C
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AT28451B
(de )
1907-05-25
Heizöhrenkessel.
AT90847B
(de )
1923-01-10
Kohlenstaubfeuerung.