CA473721A - Cloches d'alarme - Google Patents

Cloches d'alarme

Info

Publication number
CA473721A
CA473721A CA473721A CA473721DA CA473721A CA 473721 A CA473721 A CA 473721A CA 473721 A CA473721 A CA 473721A CA 473721D A CA473721D A CA 473721DA CA 473721 A CA473721 A CA 473721A
Authority
CA
Canada
Prior art keywords
alarm bells
bells
alarm
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
CA473721A
Other languages
English (en)
Inventor
W. Fruh Arthur
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 CA473721A publication Critical patent/CA473721A/fr
Expired legal-status Critical Current

Links

CA473721A Cloches d'alarme Expired CA473721A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA473721T

Publications (1)

Publication Number Publication Date
CA473721A true CA473721A (fr) 1951-05-22

Family

ID=35607693

Family Applications (1)

Application Number Title Priority Date Filing Date
CA473721A Expired CA473721A (fr) Cloches d'alarme

Country Status (1)

Country Link
CA (1) CA473721A (fr)

Similar Documents

Publication Publication Date Title
CA473721A (fr) Cloches d'alarme
CA471248A (fr) Barres contre le cambriolage
CA472875A (fr) Indicateurs pour peche sur glace
CA476398A (fr) Porte-havresacs
CA472320A (fr) Mercapto-ceto-dihydrothiazines
CA477777A (fr) Agglomeres
CA465208A (fr) Avertisseur mecanique d'incendie
CA473707A (fr) Avertisseurs
CA479400A (fr) Indicateurs
CA476370A (fr) Scies alternatives
CA475276A (fr) Dispositifs de signaux
CA472564A (fr) Fonctionnement automatique des cloches d'eglise
AU153745B2 (en) Improved Transducers
CA473028A (fr) Indicateurs
CA475116A (fr) Signaux a sonnerie
CA473286A (fr) Traverses
CA463787A (fr) Systeme d'avertisseur
AU153508B2 (en) Eradicat or mechanism
CA471325A (fr) Indicateurs de rapports de quantites electriques
CA473260A (fr) Dinitrohexachlorobutanes
CA477581A (fr) Batons de skis
CA477135A (fr) Systemes de relais d'angles de phases a frequences doubles
CA476878A (fr) Indicateurs de rapports
CA476383A (fr) Illumination d'affiche
CA470644A (fr) Dispositifs d'etude de trigonometrie