DE157584C - - Google Patents

Info

Publication number
DE157584C
DE157584C DENDAT157584D DE157584DC DE157584C DE 157584 C DE157584 C DE 157584C DE NDAT157584 D DENDAT157584 D DE NDAT157584D DE 157584D C DE157584D C DE 157584DC DE 157584 C DE157584 C DE 157584C
Authority
DE
Germany
Prior art keywords
slide
characters
different
control clock
viewing opening
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.)
Active
Application number
DENDAT157584D
Other languages
German (de)
English (en)
Publication of DE157584C publication Critical patent/DE157584C/de
Active 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)
DENDAT157584D Active DE157584C (OSRAM)

Publications (1)

Publication Number Publication Date
DE157584C true DE157584C (OSRAM)

Family

ID=423840

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT157584D Active DE157584C (OSRAM)

Country Status (1)

Country Link
DE (1) DE157584C (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130085A (en) * 1977-05-11 1978-12-19 Becton, Dickinson And Company Apparatus for manufacturing spot test indicators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130085A (en) * 1977-05-11 1978-12-19 Becton, Dickinson And Company Apparatus for manufacturing spot test indicators

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