CH20712A - Pocket watch case for dustproof closure - Google Patents

Pocket watch case for dustproof closure

Info

Publication number
CH20712A
CH20712A CH20712A CH20712DA CH20712A CH 20712 A CH20712 A CH 20712A CH 20712 A CH20712 A CH 20712A CH 20712D A CH20712D A CH 20712DA CH 20712 A CH20712 A CH 20712A
Authority
CH
Switzerland
Prior art keywords
watch case
pocket watch
dustproof closure
dustproof
closure
Prior art date
Application number
CH20712A
Other languages
German (de)
Inventor
Heinrich Voortmann
Original Assignee
Heinrich Voortmann
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 Heinrich Voortmann filed Critical Heinrich Voortmann
Publication of CH20712A publication Critical patent/CH20712A/en

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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/081—Complete encasings for wrist or pocket watches also comprising means for hermetic sealing of the winding stem and crown
    • G04B37/082—Complete encasings for wrist or pocket watches also comprising means for hermetic sealing of the winding stem and crown without special hermetic sealing pieces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH20712A 1899-12-13 1899-12-13 Pocket watch case for dustproof closure CH20712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH20712T 1899-12-13

Publications (1)

Publication Number Publication Date
CH20712A true CH20712A (en) 1901-03-15

Family

ID=4225203

Family Applications (1)

Application Number Title Priority Date Filing Date
CH20712A CH20712A (en) 1899-12-13 1899-12-13 Pocket watch case for dustproof closure

Country Status (1)

Country Link
CH (1) CH20712A (en)

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