Patent Application Improvements in or relating to process and apparatus for forming press seals on the ends of vitreous tubes for high pressure mercury vapor lamps

Keywords DePENNING
India
steel
iron
rollers
mandrel
construction
Ministry/ Department/ Residency PATENTS AND DESIGNS KOLKATA
Branch Kolkata
From Year / Date
(YYYY-MM-DD)
1961
To Year / Date
(YYYY-MM-DD)
1961
Identifier NAIBHF00005524
File No./Reference No./Sheet No./Folio No. 78227
Location BBSR-R1
File Size 30.7 MB
Pages 18
Language English
Bundle Barcode NAIBHB00000257
File Barcode NAIBHF00005524
QC Certificate No. QC_20240629BH
Bundle No. 65

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