CA519084A - Backflow prevention method and apparatus - Google Patents

Backflow prevention method and apparatus

Info

Publication number
CA519084A
CA519084A CA519084A CA519084DA CA519084A CA 519084 A CA519084 A CA 519084A CA 519084 A CA519084 A CA 519084A CA 519084D A CA519084D A CA 519084DA CA 519084 A CA519084 A CA 519084A
Authority
CA
Canada
Prior art keywords
backflow prevention
prevention method
backflow
prevention
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
CA519084A
Other languages
French (fr)
Inventor
Carlton Frank
L. Snyder Leonard
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA519084A publication Critical patent/CA519084A/en
Expired legal-status Critical Current

Links

CA519084A Backflow prevention method and apparatus Expired CA519084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA519084T

Publications (1)

Publication Number Publication Date
CA519084A true CA519084A (en) 1955-12-06

Family

ID=35672291

Family Applications (1)

Application Number Title Priority Date Filing Date
CA519084A Expired CA519084A (en) Backflow prevention method and apparatus

Country Status (1)

Country Link
CA (1) CA519084A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357954A (en) * 1980-07-21 1982-11-09 The Toro Company Backflow preventing valve construction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4357954A (en) * 1980-07-21 1982-11-09 The Toro Company Backflow preventing valve construction

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