CA679552A - Roof-type aerating device - Google Patents

Roof-type aerating device

Info

Publication number
CA679552A
CA679552A CA679552A CA679552DA CA679552A CA 679552 A CA679552 A CA 679552A CA 679552 A CA679552 A CA 679552A CA 679552D A CA679552D A CA 679552DA CA 679552 A CA679552 A CA 679552A
Authority
CA
Canada
Prior art keywords
roof
aerating device
type aerating
type
aerating
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
Application number
CA679552A
Inventor
E. Miles John
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.)
AER-VAC Inc
Original Assignee
AER-VAC Inc
Publication date
Application granted granted Critical
Publication of CA679552A publication Critical patent/CA679552A/en
Expired legal-status Critical Current

Links

CA679552A Roof-type aerating device Expired CA679552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA679552T

Publications (1)

Publication Number Publication Date
CA679552A true CA679552A (en) 1964-02-04

Family

ID=35980635

Family Applications (1)

Application Number Title Priority Date Filing Date
CA679552A Expired CA679552A (en) Roof-type aerating device

Country Status (1)

Country Link
CA (1) CA679552A (en)

Similar Documents

Publication Publication Date Title
CA683104A (en) Fastening device
CA679552A (en) Roof-type aerating device
CA690835A (en) Holding device
CA981803A (en) Superconducting device
CA691711A (en) Foot-ease pedal-holding device
CA692727A (en) Fastening device
CA691931A (en) Semiconductor device
CA678155A (en) Crystallizing device
CA678268A (en) Animal-feeding device
CA693932A (en) Wire-unwinding device
CA692691A (en) Draughting device
CA683593A (en) Liquid-brushing device
AU282258B2 (en) Flotation device
CA687394A (en) Printing device
CA699488A (en) Printing device construction
CA695162A (en) Solid state device
CA682591A (en) Propeller device
CA684158A (en) Practice device
CA681001A (en) Fastening device
AU296059B2 (en) Fastening device
CA681342A (en) Fastening device
AU292720B2 (en) Fastening device
CA686164A (en) Fastening device
CA678481A (en) Fastening device
CA692191A (en) Line attaching device