CA919632A - Mine ladder - Google Patents
Mine ladderInfo
- Publication number
- CA919632A CA919632A CA919632A CA919632DA CA919632A CA 919632 A CA919632 A CA 919632A CA 919632 A CA919632 A CA 919632A CA 919632D A CA919632D A CA 919632DA CA 919632 A CA919632 A CA 919632A
- Authority
- CA
- Canada
- Prior art keywords
- mine
- ladder
- mine ladder
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/10—Sections fitted end to end
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA72303 | 1970-01-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA919632A true CA919632A (en) | 1973-01-23 |
Family
ID=4086194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA919632A Expired CA919632A (en) | 1970-01-16 | 1970-01-16 | Mine ladder |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA919632A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998044235A1 (en) | 1997-03-28 | 1998-10-08 | Les Modules B.L.B. Inc. | Modular ladder assembly for mine raise |
-
1970
- 1970-01-16 CA CA919632A patent/CA919632A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998044235A1 (en) | 1997-03-28 | 1998-10-08 | Les Modules B.L.B. Inc. | Modular ladder assembly for mine raise |
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