USD258499S - Mine roof warning indicator - Google Patents
Mine roof warning indicator Download PDFInfo
- Publication number
- USD258499S USD258499S US05/971,949 US97194978F USD258499S US D258499 S USD258499 S US D258499S US 97194978 F US97194978 F US 97194978F US D258499 S USD258499 S US D258499S
- Authority
- US
- United States
- Prior art keywords
- mine roof
- warning indicator
- roof warning
- mine
- indicator
- 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 - Lifetime
Links
Images
Description
FIG. 1 is a prospective view of the mine roof warning indicator showing our new design.
FIG. 2 is a perspective view with the indicator means in the danger warning position of the mine roof warning indicator showing our new design.
FIG. 3 is a top view of the mine roof warning indicator showing our new design.
FIG. 4 is a bottom view of a mine roof warning indicator showing our new design.
Claims (1)
- The ornamental design for a mine roof warning indicator, as shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/971,949 USD258499S (en) | 1978-12-21 | 1978-12-21 | Mine roof warning indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/971,949 USD258499S (en) | 1978-12-21 | 1978-12-21 | Mine roof warning indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USD258499S true USD258499S (en) | 1981-03-10 |
Family
ID=69779260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/971,949 Expired - Lifetime USD258499S (en) | 1978-12-21 | 1978-12-21 | Mine roof warning indicator |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USD258499S (en) |
-
1978
- 1978-12-21 US US05/971,949 patent/USD258499S/en not_active Expired - Lifetime
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