FR839211A - Manufacturing process of hard glass or quartz glass lamp bases - Google Patents

Manufacturing process of hard glass or quartz glass lamp bases

Info

Publication number
FR839211A
FR839211A FR839211DA FR839211A FR 839211 A FR839211 A FR 839211A FR 839211D A FR839211D A FR 839211DA FR 839211 A FR839211 A FR 839211A
Authority
FR
France
Prior art keywords
manufacturing process
lamp bases
glass
hard
quartz glass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ver Gluehlampen & Elek AG
Original Assignee
Ver Gluehlampen & Elek AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ver Gluehlampen & Elek AG filed Critical Ver Gluehlampen & Elek AG
Application granted granted Critical
Publication of FR839211A publication Critical patent/FR839211A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/06—Broad-band transformers, e.g. suitable for handling frequencies well down into the audio range

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
FR839211D 1937-06-26 1938-06-13 Manufacturing process of hard glass or quartz glass lamp bases Expired FR839211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE839211X 1937-06-26

Publications (1)

Publication Number Publication Date
FR839211A true FR839211A (en) 1939-03-29

Family

ID=6761873

Family Applications (1)

Application Number Title Priority Date Filing Date
FR839211D Expired FR839211A (en) 1937-06-26 1938-06-13 Manufacturing process of hard glass or quartz glass lamp bases

Country Status (2)

Country Link
FR (1) FR839211A (en)
NL (1) NL88366C (en)

Also Published As

Publication number Publication date
NL88366C (en)

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