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
- 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
Family
ID=
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