CA230773A - Apparatus for producing a vacuum - Google Patents

Apparatus for producing a vacuum

Info

Publication number
CA230773A
CA230773A CA230773A CA230773DA CA230773A CA 230773 A CA230773 A CA 230773A CA 230773 A CA230773 A CA 230773A CA 230773D A CA230773D A CA 230773DA CA 230773 A CA230773 A CA 230773A
Authority
CA
Canada
Prior art keywords
vacuum
producing
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
CA230773A
Other languages
French (fr)
Inventor
Tibbetts Thomas
C. Tibbetts 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 CA230773A publication Critical patent/CA230773A/en
Expired legal-status Critical Current

Links

CA230773A Apparatus for producing a vacuum Expired CA230773A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA230773T

Publications (1)

Publication Number Publication Date
CA230773A true CA230773A (en) 1923-05-01

Family

ID=35128145

Family Applications (1)

Application Number Title Priority Date Filing Date
CA230773A Expired CA230773A (en) Apparatus for producing a vacuum

Country Status (1)

Country Link
CA (1) CA230773A (en)

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