CA92257A - Ventilating building block - Google Patents

Ventilating building block

Info

Publication number
CA92257A
CA92257A CA000092257A CA92257DA CA92257A CA 92257 A CA92257 A CA 92257A CA 000092257 A CA000092257 A CA 000092257A CA 92257D A CA92257D A CA 92257DA CA 92257 A CA92257 A CA 92257A
Authority
CA
Canada
Prior art keywords
building block
ventilating building
ventilating
block
building
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
CA000092257A
Other languages
French (fr)
Inventor
Robert L. Underwood
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 CA92257A publication Critical patent/CA92257A/en
Expired legal-status Critical Current

Links

CA000092257A 1905-01-21 1905-01-21 Ventilating building block Expired CA92257A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA92257T 1905-01-21

Publications (1)

Publication Number Publication Date
CA92257A true CA92257A (en) 1905-03-21

Family

ID=45208792

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000092257A Expired CA92257A (en) 1905-01-21 1905-01-21 Ventilating building block

Country Status (1)

Country Link
CA (1) CA92257A (en)

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