CA233020A - Enveloppe spirale - Google Patents

Enveloppe spirale

Info

Publication number
CA233020A
CA233020A CA233020A CA233020DA CA233020A CA 233020 A CA233020 A CA 233020A CA 233020 A CA233020 A CA 233020A CA 233020D A CA233020D A CA 233020DA CA 233020 A CA233020 A CA 233020A
Authority
CA
Canada
Prior art keywords
spiral casing
spiral
casing
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
CA233020A
Other languages
English (en)
Inventor
Birchard Taylor Harvey
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 CA233020A publication Critical patent/CA233020A/fr
Expired legal-status Critical Current

Links

CA233020A Enveloppe spirale Expired CA233020A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA233020T

Publications (1)

Publication Number Publication Date
CA233020A true CA233020A (fr) 1923-07-24

Family

ID=35130393

Family Applications (1)

Application Number Title Priority Date Filing Date
CA233020A Expired CA233020A (fr) Enveloppe spirale

Country Status (1)

Country Link
CA (1) CA233020A (fr)

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