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1982-03-16
Fireplace heater
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(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html )
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1958-03-27
Wand-wasserheizer fuer feste brennstoffe.
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1953-07-30
Dampflokomotivkessel mit nachgeschaltetem Rauchgasspeisewasservorwaermer
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(en )
1949-08-23
Portable hot water heater unit
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Neuerungen an dem durch Patent Nr. 23949 geschützten Regenerativ-Gaskochapparat
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1955-05-25
Improvements in and relating to domestic hot water boilers
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(de )
1950-11-23
Kuechenherd-warmwasserheizung und warmwasserbereitung.
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