JPH0436403U - - Google Patents

Info

Publication number
JPH0436403U
JPH0436403U JP7799590U JP7799590U JPH0436403U JP H0436403 U JPH0436403 U JP H0436403U JP 7799590 U JP7799590 U JP 7799590U JP 7799590 U JP7799590 U JP 7799590U JP H0436403 U JPH0436403 U JP H0436403U
Authority
JP
Japan
Prior art keywords
manhole
spirit level
receiving frame
wear
amount
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
Application number
JP7799590U
Other languages
English (en)
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7799590U priority Critical patent/JPH0436403U/ja
Publication of JPH0436403U publication Critical patent/JPH0436403U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)
JP7799590U 1990-07-23 1990-07-23 Pending JPH0436403U (US20020095090A1-20020718-M00002.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7799590U JPH0436403U (US20020095090A1-20020718-M00002.png) 1990-07-23 1990-07-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7799590U JPH0436403U (US20020095090A1-20020718-M00002.png) 1990-07-23 1990-07-23

Publications (1)

Publication Number Publication Date
JPH0436403U true JPH0436403U (US20020095090A1-20020718-M00002.png) 1992-03-26

Family

ID=31620882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7799590U Pending JPH0436403U (US20020095090A1-20020718-M00002.png) 1990-07-23 1990-07-23

Country Status (1)

Country Link
JP (1) JPH0436403U (US20020095090A1-20020718-M00002.png)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6017402B2 (ja) * 1981-04-07 1985-05-02 チッソ株式会社 α−オレフイン重合用触媒成分
JPS621113B2 (US20020095090A1-20020718-M00002.png) * 1980-06-19 1987-01-12 Nitto Kohki Co
JPS6443603U (US20020095090A1-20020718-M00002.png) * 1987-09-11 1989-03-15

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS621113B2 (US20020095090A1-20020718-M00002.png) * 1980-06-19 1987-01-12 Nitto Kohki Co
JPS6017402B2 (ja) * 1981-04-07 1985-05-02 チッソ株式会社 α−オレフイン重合用触媒成分
JPS6443603U (US20020095090A1-20020718-M00002.png) * 1987-09-11 1989-03-15

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