JPS63104784U - - Google Patents
Info
- Publication number
- JPS63104784U JPS63104784U JP19975886U JP19975886U JPS63104784U JP S63104784 U JPS63104784 U JP S63104784U JP 19975886 U JP19975886 U JP 19975886U JP 19975886 U JP19975886 U JP 19975886U JP S63104784 U JPS63104784 U JP S63104784U
- Authority
- JP
- Japan
- Prior art keywords
- spiral
- hollow tube
- fins
- utility
- spiral tube
- 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.)
- Granted
Links
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 10
- 229920001903 high density polyethylene Polymers 0.000 claims 1
- 239000004700 high-density polyethylene Substances 0.000 claims 1
- 229920001684 low density polyethylene Polymers 0.000 claims 1
- 239000004702 low-density polyethylene Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19975886U JPH0334540Y2 (de) | 1986-12-26 | 1986-12-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19975886U JPH0334540Y2 (de) | 1986-12-26 | 1986-12-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63104784U true JPS63104784U (de) | 1988-07-07 |
JPH0334540Y2 JPH0334540Y2 (de) | 1991-07-22 |
Family
ID=31161681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19975886U Expired JPH0334540Y2 (de) | 1986-12-26 | 1986-12-26 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0334540Y2 (de) |
-
1986
- 1986-12-26 JP JP19975886U patent/JPH0334540Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPH0334540Y2 (de) | 1991-07-22 |
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