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WATERTIGHT WATCH-CASE WITH LAMINATED CRYSTAL
US 3,495,398 A
Filed
: 07/10/1968
Issued
: 02/17/1970
Est. Priority Date
: 07/10/1967
Status: Expired due to Term
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74
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Current Assignee
Hans Widmer
,
Paul Wessel
,
Schnyder Eduard
Original Assignee
Hans Widmer
,
Paul Wessel
,
Schnyder Eduard
Inventors
Widmer, Hans
,
SCHNYDER EDUARD
,
Wessel, Paul
Application Number
US04/743,815
Time in Patent Office
587 Days
Field of Search
US Class Current
368/291
CPC Class Codes
G04B 39/00
Watch crystals; Fastening o...
G04B 39/02
Sealing crystals or glasses...
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