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Application filed by Ingenioer Et Nira V Nielsen OgfiledCriticalIngenioer Et Nira V Nielsen Og
Priority to DK232549ApriorityCriticalpatent/DK77390C/da
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DK232549A1949-07-111949-07-11Anordning ved gasfyringsanlæg med en hovedventil, der kan indstilles på maksimal og minimal gastilførsel til hovedblusset.
DK77390C
(da)