CA371068A - Signal a sifflet pour boyaux - Google Patents

Signal a sifflet pour boyaux

Info

Publication number
CA371068A
CA371068A CA371068A CA371068DA CA371068A CA 371068 A CA371068 A CA 371068A CA 371068 A CA371068 A CA 371068A CA 371068D A CA371068D A CA 371068DA CA 371068 A CA371068 A CA 371068A
Authority
CA
Canada
Prior art keywords
hose
whistling signal
whistling
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
CA371068A
Other languages
English (en)
Inventor
T. Oxley 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 CA371068A publication Critical patent/CA371068A/fr
Expired legal-status Critical Current

Links

CA371068A Signal a sifflet pour boyaux Expired CA371068A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA371068T

Publications (1)

Publication Number Publication Date
CA371068A true CA371068A (fr) 1938-01-04

Family

ID=35372134

Family Applications (1)

Application Number Title Priority Date Filing Date
CA371068A Expired CA371068A (fr) Signal a sifflet pour boyaux

Country Status (1)

Country Link
CA (1) CA371068A (fr)

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