CA213519A - Pompe a vide - Google Patents

Pompe a vide

Info

Publication number
CA213519A
CA213519A CA213519A CA213519DA CA213519A CA 213519 A CA213519 A CA 213519A CA 213519 A CA213519 A CA 213519A CA 213519D A CA213519D A CA 213519DA CA 213519 A CA213519 A CA 213519A
Authority
CA
Canada
Prior art keywords
vacuum pump
vacuum
pump
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
CA213519A
Other languages
English (en)
Inventor
Hamilton Delahay Walter
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 CA213519A publication Critical patent/CA213519A/fr
Expired legal-status Critical Current

Links

CA213519A Pompe a vide Expired CA213519A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA213519T

Publications (1)

Publication Number Publication Date
CA213519A true CA213519A (fr) 1921-09-27

Family

ID=35107963

Family Applications (1)

Application Number Title Priority Date Filing Date
CA213519A Expired CA213519A (fr) Pompe a vide

Country Status (1)

Country Link
CA (1) CA213519A (fr)

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