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CA199486A - Collapsible hollow form for concrete - Google Patents

Collapsible hollow form for concrete

Info

Publication number
CA199486A
CA199486A CA199486A CA199486DA CA199486A CA 199486 A CA199486 A CA 199486A CA 199486 A CA199486 A CA 199486A CA 199486D A CA199486D A CA 199486DA CA 199486 A CA199486 A CA 199486A
Authority
CA
Canada
Prior art keywords
concrete
hollow form
collapsible hollow
collapsible
hollow
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
CA199486A
Other languages
French (fr)
Inventor
M. Camp Ervin
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 CA199486A publication Critical patent/CA199486A/en
Expired legal-status Critical Current

Links

CA199486A Collapsible hollow form for concrete Expired CA199486A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA199486T

Publications (1)

Publication Number Publication Date
CA199486A true CA199486A (en) 1920-04-27

Family

ID=35073923

Family Applications (1)

Application Number Title Priority Date Filing Date
CA199486A Expired CA199486A (en) Collapsible hollow form for concrete

Country Status (1)

Country Link
CA (1) CA199486A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1021875S1 (en) * 2020-05-22 2024-04-09 Freedman Electronics Pty Ltd Microphone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1021875S1 (en) * 2020-05-22 2024-04-09 Freedman Electronics Pty Ltd Microphone

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