DE189639A - - Google Patents

Info

Publication number

DE189639A

DE189639A DE189639A DE 189639 A DE189639 A DE 189639A DE 189639 A DE189639 A DE 189639A

Authority

DE

Germany

Prior art keywords

lamp

loops

filaments

bezw

individual

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.)

Pending

Links

• Espacenet
• Global Dossier
• DPMA
• Discuss

• 239000011521 glass Substances 0.000 claims description 8
• 229910052751 metal Inorganic materials 0.000 claims description 6
• 239000002184 metal Substances 0.000 claims description 6
• 239000000463 material Substances 0.000 claims description 3
• 239000003245 coal Substances 0.000 claims description 2
• 150000002739 metals Chemical class 0.000 claims 1
• 239000000725 suspension Substances 0.000 claims 1
• WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
• 229910052721 tungsten Inorganic materials 0.000 description 4
• 239000010937 tungsten Substances 0.000 description 4
• 235000014443 Pyrus communis Nutrition 0.000 description 1
• 238000001816 cooling Methods 0.000 description 1
• 238000010304 firing Methods 0.000 description 1
• 239000000289 melt material Substances 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 238000000926 separation method Methods 0.000 description 1