CA20838A - Pneumatic signal - Google Patents

Pneumatic signal

Info

Publication number
CA20838A
CA20838A CA000020838A CA20838DA CA20838A CA 20838 A CA20838 A CA 20838A CA 000020838 A CA000020838 A CA 000020838A CA 20838D A CA20838D A CA 20838DA CA 20838 A CA20838 A CA 20838A
Authority
CA
Canada
Prior art keywords
pneumatic signal
pneumatic
signal
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
CA000020838A
Other languages
French (fr)
Inventor
Jonathan L. Booth
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.)
BOOTH CELIA B
Original Assignee
BOOTH CELIA B
Publication date
Application granted granted Critical
Publication of CA20838A publication Critical patent/CA20838A/en
Expired legal-status Critical Current

Links

CA000020838A Pneumatic signal Expired CA20838A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA20838T

Publications (1)

Publication Number Publication Date
CA20838A true CA20838A (en) 1885-01-07

Family

ID=45137381

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000020838A Expired CA20838A (en) Pneumatic signal

Country Status (1)

Country Link
CA (1) CA20838A (en)

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