CH34631A - Sprechuhr - Google Patents

Sprechuhr

Info

Publication number
CH34631A
CH34631A CH34631A CH34631DA CH34631A CH 34631 A CH34631 A CH 34631A CH 34631 A CH34631 A CH 34631A CH 34631D A CH34631D A CH 34631DA CH 34631 A CH34631 A CH 34631A
Authority
CH
Switzerland
Prior art keywords
intercom
Prior art date
Application number
CH34631A
Other languages
English (en)
Inventor
Paul Wetzel
Original Assignee
Paul Wetzel
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 by Paul Wetzel filed Critical Paul Wetzel
Publication of CH34631A publication Critical patent/CH34631A/de

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B21/00—Indicating the time by acoustic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH34631A 1905-06-17 1905-06-17 Sprechuhr CH34631A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH34631T 1905-06-17

Publications (1)

Publication Number Publication Date
CH34631A true CH34631A (de) 1906-05-15

Family

ID=4256472

Family Applications (1)

Application Number Title Priority Date Filing Date
CH34631A CH34631A (de) 1905-06-17 1905-06-17 Sprechuhr

Country Status (1)

Country Link
CH (1) CH34631A (de)

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