CA122470A - Marche d'escalier - Google Patents

Marche d'escalier

Info

Publication number
CA122470A
CA122470A CA000122470A CA122470DA CA122470A CA 122470 A CA122470 A CA 122470A CA 000122470 A CA000122470 A CA 000122470A CA 122470D A CA122470D A CA 122470DA CA 122470 A CA122470 A CA 122470A
Authority
CA
Canada
Prior art keywords
tread
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
CA000122470A
Other languages
English (en)
Inventor
John Thomas Simpson
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA122470A publication Critical patent/CA122470A/fr
Expired legal-status Critical Current

Links

CA000122470A 1909-05-21 1909-05-21 Marche d'escalier Expired CA122470A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA122470T 1909-05-21

Publications (1)

Publication Number Publication Date
CA122470A true CA122470A (fr) 1909-12-07

Family

ID=45242194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000122470A Expired CA122470A (fr) 1909-05-21 1909-05-21 Marche d'escalier

Country Status (1)

Country Link
CA (1) CA122470A (fr)

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