NL38581C - - Google Patents
Info
- Publication number
- NL38581C NL38581C NL38581DA NL38581C NL 38581 C NL38581 C NL 38581C NL 38581D A NL38581D A NL 38581DA NL 38581 C NL38581 C NL 38581C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/18—Mountings or supports for the incandescent body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP67738D DE614538C (de) | 1933-06-24 | 1933-06-24 | Elektrische Projektionsgluehlampe, insbesondere fuer kinematographische Zwecke |
| US730236A US2041583A (en) | 1933-06-24 | 1934-06-12 | Electric incandescent lamp for projecting purposes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL38581C true NL38581C (de) |
Family
ID=25990927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL38581D NL38581C (de) | 1933-06-24 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2041583A (de) |
| AT (2) | AT140944B (de) |
| DE (2) | DE614538C (de) |
| FR (1) | FR791074A (de) |
| GB (1) | GB439227A (de) |
| NL (1) | NL38581C (de) |
-
0
- NL NL38581D patent/NL38581C/xx active
-
1933
- 1933-06-24 DE DEP67738D patent/DE614538C/de not_active Expired
-
1934
- 1934-06-12 US US730236A patent/US2041583A/en not_active Expired - Lifetime
- 1934-06-18 AT AT140944D patent/AT140944B/de active
-
1935
- 1935-03-24 DE DEP70976D patent/DE628148C/de not_active Expired
- 1935-05-21 AT AT144878D patent/AT144878B/de active
- 1935-06-11 FR FR791074D patent/FR791074A/fr not_active Expired
- 1935-06-11 GB GB16812/35A patent/GB439227A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2041583A (en) | 1936-05-19 |
| GB439227A (en) | 1935-12-02 |
| DE614538C (de) | 1935-06-12 |
| DE628148C (de) | 1936-03-30 |
| FR791074A (fr) | 1935-12-02 |
| AT144878B (de) | 1936-03-10 |
| AT140944B (de) | 1935-03-11 |