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CA247891A - Bouche-trou - Google Patents

Bouche-trou

Info

Publication number
CA247891A
CA247891A CA247891A CA247891DA CA247891A CA 247891 A CA247891 A CA 247891A CA 247891 A CA247891 A CA 247891A CA 247891D A CA247891D A CA 247891DA CA 247891 A CA247891 A CA 247891A
Authority
CA
Canada
Prior art keywords
aperture stopper
stopper
aperture
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
CA247891A
Other languages
English (en)
Inventor
H. Hazlewood John
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 CA247891A publication Critical patent/CA247891A/fr
Expired legal-status Critical Current

Links

CA247891A Bouche-trou Expired CA247891A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA247891T

Publications (1)

Publication Number Publication Date
CA247891A true CA247891A (fr) 1925-03-24

Family

ID=35154865

Family Applications (1)

Application Number Title Priority Date Filing Date
CA247891A Expired CA247891A (fr) Bouche-trou

Country Status (1)

Country Link
CA (1) CA247891A (fr)

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