CA497834A - Opercules d'acier - Google Patents

Opercules d'acier

Info

Publication number
CA497834A
CA497834A CA497834A CA497834DA CA497834A CA 497834 A CA497834 A CA 497834A CA 497834 A CA497834 A CA 497834A CA 497834D A CA497834D A CA 497834DA CA 497834 A CA497834 A CA 497834A
Authority
CA
Canada
Prior art keywords
hatch covers
steel hatch
steel
covers
hatch
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
CA497834A
Other languages
English (en)
Inventor
Macgregor Robert
Macgregor Joseph
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 CA497834A publication Critical patent/CA497834A/fr
Expired legal-status Critical Current

Links

CA497834A Opercules d'acier Expired CA497834A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA497834T

Publications (1)

Publication Number Publication Date
CA497834A true CA497834A (fr) 1953-11-24

Family

ID=35643270

Family Applications (1)

Application Number Title Priority Date Filing Date
CA497834A Expired CA497834A (fr) Opercules d'acier

Country Status (1)

Country Link
CA (1) CA497834A (fr)

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