CA303918A - Dispositif de surete du couvercle de trou de visite - Google Patents

Dispositif de surete du couvercle de trou de visite

Info

Publication number
CA303918A
CA303918A CA303918A CA303918DA CA303918A CA 303918 A CA303918 A CA 303918A CA 303918 A CA303918 A CA 303918A CA 303918D A CA303918D A CA 303918DA CA 303918 A CA303918 A CA 303918A
Authority
CA
Canada
Prior art keywords
safety device
manhole covers
manhole
covers
safety
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
CA303918A
Other languages
English (en)
Inventor
H. Borland Matthew
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 CA303918A publication Critical patent/CA303918A/fr
Expired legal-status Critical Current

Links

CA303918A Dispositif de surete du couvercle de trou de visite Expired CA303918A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA303918T

Publications (1)

Publication Number Publication Date
CA303918A true CA303918A (fr) 1930-09-16

Family

ID=35257064

Family Applications (1)

Application Number Title Priority Date Filing Date
CA303918A Expired CA303918A (fr) Dispositif de surete du couvercle de trou de visite

Country Status (1)

Country Link
CA (1) CA303918A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514931A (en) * 1984-07-02 1985-05-07 Allied Flux Reclaiming Ltd. Securing device for manhole cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514931A (en) * 1984-07-02 1985-05-07 Allied Flux Reclaiming Ltd. Securing device for manhole cover

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