JPS5399646A - Ventilating fan - Google Patents

Ventilating fan

Info

Publication number
JPS5399646A
JPS5399646A JP7790077A JP7790077A JPS5399646A JP S5399646 A JPS5399646 A JP S5399646A JP 7790077 A JP7790077 A JP 7790077A JP 7790077 A JP7790077 A JP 7790077A JP S5399646 A JPS5399646 A JP S5399646A
Authority
JP
Japan
Prior art keywords
ventilating fan
ventilating
fan
efficiency
improve
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
Application number
JP7790077A
Other languages
Japanese (ja)
Other versions
JPS5947815B2 (en
Inventor
Sakae Kamata
Katsuo Takashima
Takeshi Imaizumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP52077900A priority Critical patent/JPS5947815B2/en
Publication of JPS5399646A publication Critical patent/JPS5399646A/en
Publication of JPS5947815B2 publication Critical patent/JPS5947815B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To improve the efficiency of exhaust significantly.
COPYRIGHT: (C)1978,JPO&Japio
JP52077900A 1977-07-01 1977-07-01 ventilation fan Expired JPS5947815B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52077900A JPS5947815B2 (en) 1977-07-01 1977-07-01 ventilation fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52077900A JPS5947815B2 (en) 1977-07-01 1977-07-01 ventilation fan

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP1394977A Division JPS5398514A (en) 1977-02-09 1977-02-09 Connecting device for pipes

Publications (2)

Publication Number Publication Date
JPS5399646A true JPS5399646A (en) 1978-08-31
JPS5947815B2 JPS5947815B2 (en) 1984-11-21

Family

ID=13646941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52077900A Expired JPS5947815B2 (en) 1977-07-01 1977-07-01 ventilation fan

Country Status (1)

Country Link
JP (1) JPS5947815B2 (en)

Also Published As

Publication number Publication date
JPS5947815B2 (en) 1984-11-21

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