DE158874C - - Google Patents

Info

Publication number
DE158874C
DE158874C DE1904158874D DE158874DD DE158874C DE 158874 C DE158874 C DE 158874C DE 1904158874 D DE1904158874 D DE 1904158874D DE 158874D D DE158874D D DE 158874DD DE 158874 C DE158874 C DE 158874C
Authority
DE
Germany
Prior art keywords
circuit
battery
contact
switch
bell
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
DE1904158874D
Other languages
German (de)
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of DE158874C publication Critical patent/DE158874C/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/20—Checking timed patrols, e.g. of watchman

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
DE1904158874D 1904-05-08 1904-05-08 Expired DE158874C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE158874T 1904-05-08

Publications (1)

Publication Number Publication Date
DE158874C true DE158874C (enrdf_load_stackoverflow) 1905-03-24

Family

ID=33315441

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1904158874D Expired DE158874C (enrdf_load_stackoverflow) 1904-05-08 1904-05-08

Country Status (1)

Country Link
DE (1) DE158874C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763230C (de) * 1937-12-01 1954-01-25 Normalzeit G M B H Waechtermeldeanlage mit in einer gemeinsamen UEbertragungsleitung liegenden Meldestellen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763230C (de) * 1937-12-01 1954-01-25 Normalzeit G M B H Waechtermeldeanlage mit in einer gemeinsamen UEbertragungsleitung liegenden Meldestellen

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